# Cooking with roux in a crock pot **URL:** \ **Category:** Cafe Society\ **Created:** [January 26, 2011, 6:03am UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028 "2011-01-26T06:03:45Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Argent\_Towers](https://avatars.discourse-cdn.com/v4/letter/a/e8c25b/32.png) [@Argent\_Towers](https://boards.straightdope.com/u/Argent_Towers)\ **Post date:** [January 26, 2011, 6:03am UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/1 "2011-01-26T06:03:45Z")
I am making beef stew (organic local meat only!) tomorrow in a crock pot, so it will cook for 8 hours. (I’ll start the crock pot at noon.) I have done all the prep work tonight, including making about 2 cups of Tony Chachere’s instant roux. I bought the stuff today while at the store because I wanted the stew to be thicker, and not just beef soup with chunks of vegetables. I also made Mirepoix to go in the stew. My question is: should I put the roux into the crock pot tomorrow with all the other ingredients (cubed meat, mirepoix, red wine, etc), mix it all together and then start the cooking - or should I put the roux in _after_ the stew is already cooked? How do I make sure the roux mixes smoothly with the stew? Thanks. ---
**Author:** ![Terraplane](https://avatars.discourse-cdn.com/v4/letter/t/74df32/32.png) [@Terraplane](https://boards.straightdope.com/u/Terraplane)\ **Post date:** [January 26, 2011, 2:47pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/2 "2011-01-26T14:47:31Z")
I’ve never used instant roux before but this [site](http://www.cookinglouisiana.com/Cooking/powdered-roux.htm) says you can wait until the end to add it, just be sure to mix the roux in a separate container and whisk all the lumps out before you add it to the stew. ---
**Author:** ![Snickers](https://avatars.discourse-cdn.com/v4/letter/s/5daacb/32.png) [@Snickers](https://boards.straightdope.com/u/Snickers)\ **Post date:** [January 26, 2011, 2:59pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/3 "2011-01-26T14:59:00Z")
I just made a stew recipe from Cooks Illustrated in my crock pot, and it used quick cooking tapioca as a thickener. I think a tablespoon or so? I dumped it in with the rest of my ingredients at the start of cooking and stirred it around. Absolutely could not tell that it was in there. Another thickener you could use at the end is cornstarch (I think). Put it in a small jar with some water and shake it vigorously to combine. I think it might be easier to mix in than a roux, but I’m not certain. ---
**Author:** ![Diogenes\_the\_Cynic](https://avatars.discourse-cdn.com/v4/letter/d/e99b99/32.png) [@Diogenes\_the\_Cynic](https://boards.straightdope.com/u/Diogenes_the_Cynic)\ **Post date:** [January 26, 2011, 3:06pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/4 "2011-01-26T15:06:32Z")
I would mix the roux with some water or stock and put it in at the beginning with everything else. You CAN put it in late, but there’s really no reason to wait, and it will absorb and combine with the flavors better if you put it in at the beginning. It will also add better color. I would never use instant roux, though. ---
**Author:** ![pulykamell](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/pulykamell/32/3166_2.png) [@pulykamell](https://boards.straightdope.com/u/pulykamell)\ **Post date:** [January 26, 2011, 3:10pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/5 "2011-01-26T15:10:06Z")
> [@Snickers](#): > > I just made a stew recipe from Cooks Illustrated in my crock pot, and it used quick cooking tapioca as a thickener. I think a tablespoon or so? I dumped it in with the rest of my ingredients at the start of cooking and stirred it around. Absolutely could not tell that it was in there. > > Another thickener you could use at the end is cornstarch (I think). Put it in a small jar with some water and shake it vigorously to combine. I think it might be easier to mix in than a roux, but I’m not certain. You can always add your slurry (starch & water) or roux (starch & fat) at the end, and your stew will thicken up just fine. While I do all my Cajun or creole dishes starting with the roux (usually you cook the roux quite dark and the point of the roux in these dishes is as much flavor as it is thickener), anything else I’m fine with adding it at the very end and cooking it long enough to get the raw flavor out and to get all the thickening power out of it. ---
**Author:** ![Chefguy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chefguy/32/138_2.png) [@Chefguy](https://boards.straightdope.com/u/Chefguy)\ **Post date:** [January 26, 2011, 3:25pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/6 "2011-01-26T15:25:17Z")
> [@Diogenes\_the\_Cynic](#): > > I would mix the roux with some water or stock and put it in at the beginning with everything else. You CAN put it in late, but there’s really no reason to wait, and it will absorb and combine with the flavors better if you put it in at the beginning. It will also add better color. > > I would never use instant roux, though. We’re talking about two different animals here. Roux (flour cooked in oil) is employed at the beginning of the cooking cycle and the lukewarm liquid from the dish is added to the warm or hot roux (think gravy). Adding roux to hot liquid will usually result in lumps, which is why it’s made first. Thickeners (or white wash), on the other hand (such as flour, cornstarch, etc. mixed with water), may be added at the end, since the hot liquid will release the starches in the flour. The problem with this method is that the dish will likely taste floury, since the flour has not cooked. ---
**Author:** ![Diogenes\_the\_Cynic](https://avatars.discourse-cdn.com/v4/letter/d/e99b99/32.png) [@Diogenes\_the\_Cynic](https://boards.straightdope.com/u/Diogenes_the_Cynic)\ **Post date:** [January 26, 2011, 3:31pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/7 "2011-01-26T15:31:06Z")
> [@Chefguy](#): > > We’re talking about two different animals here. Roux (flour cooked in oil) is employed at the beginning of the cooking cycle and the lukewarm liquid from the dish is added to the warm or hot roux (think gravy). Adding roux to hot liquid will usually result in lumps, which is why it’s made first. > > Thickeners (or white wash), on the other hand (such as flour, cornstarch, etc. mixed with water), may be added at the end, since the hot liquid will release the starches in the flour. The problem with this method is that the dish will likely taste floury, since the flour has not cooked. I thought OP was talking specifically about roux. With slurries, of course, you do usually add them at the end, but I’m not a fan of slurries unless I’m in a hurry. They’re not very flavorful, and as you said, they can taste floury. ---
**Author:** ![Joey\_P](https://avatars.discourse-cdn.com/v4/letter/j/919ad9/32.png) [@Joey\_P](https://boards.straightdope.com/u/Joey_P)\ **Post date:** [January 26, 2011, 3:40pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/8 "2011-01-26T15:40:28Z")
> [@Chefguy](#): > > Thickeners (or white wash), on the other hand (such as flour, cornstarch, etc. mixed with water), may be added at the end, since the hot liquid will release the starches in the flour. The problem with this method is that the dish will likely taste floury, since the flour has not cooked. This is true (the dish will taste floury), but when I add it at the end I’m usually fine if I make sure I still have at least 20 minutes of cooking time left. ---
**Author:** ![Terraplane](https://avatars.discourse-cdn.com/v4/letter/t/74df32/32.png) [@Terraplane](https://boards.straightdope.com/u/Terraplane)\ **Post date:** [January 26, 2011, 3:43pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/9 "2011-01-26T15:43:14Z")
> [@Diogenes\_the\_Cynic](#): > > I thought OP was talking specifically about roux. With slurries, of course, you do usually add them at the end, but I’m not a fan of slurries unless I’m in a hurry. They’re not very flavorful, and as you said, they can taste floury. Not roux, _instant_ roux. I’ve never used the instant but looking online it seems there’s a big difference. Instant roux is basically some flour mixed with spices and it looks like you use it the same way you’d use cornstarch, tapioca, or… flour mixed with spices. ---
**Author:** ![Doctor\_Who](https://avatars.discourse-cdn.com/v4/letter/d/ed8c4c/32.png) [@Doctor\_Who](https://boards.straightdope.com/u/Doctor_Who)\ **Post date:** [January 26, 2011, 4:10pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/10 "2011-01-26T16:10:09Z")
> [@Terraplane](#): > > Not roux, _instant_ roux. I’ve never used the instant but looking online it seems there’s a big difference. Instant roux is basically some flour mixed with spices and it looks like you use it the same way you’d use cornstarch, tapioca, or… flour mixed with spices. Never used it either, although I have done this: Dump flour into an iron skillet (3 or 4 cups of flour). Stick in a 400-degree oven for around an hour. Stir occasionally so it browns evenly. Let cool and store. When you need a thickener, mix 1:1 with water. Dump it into whatever needs thickening. I’m just guessing, but I bet this is your basic instant roux recipe. ---
**Author:** ![Diogenes\_the\_Cynic](https://avatars.discourse-cdn.com/v4/letter/d/e99b99/32.png) [@Diogenes\_the\_Cynic](https://boards.straightdope.com/u/Diogenes_the_Cynic)\ **Post date:** [January 26, 2011, 4:12pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/11 "2011-01-26T16:12:12Z")
That’s not a roux, though, it’s a slurry. A roux is flour cooked in fat or oil. I assumed “instant roux” was some sort of jarred roux (which I’ve seen before). If it’s just flour and spices, it’s not a roux unless it’s mixed with a fat. ---
**Author:** ![pulykamell](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/pulykamell/32/3166_2.png) [@pulykamell](https://boards.straightdope.com/u/pulykamell)\ **Post date:** [January 26, 2011, 4:18pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/12 "2011-01-26T16:18:23Z")
> [@Chefguy](#): > > We’re talking about two different animals here. Roux (flour cooked in oil) is employed at the beginning of the cooking cycle and the lukewarm liquid from the dish is added to the warm or hot roux (think gravy). Adding roux to hot liquid will usually result in lumps, which is why it’s made first. Sorry, I should have clarified–while if I thicken at the end, it’s usually with a slurry, I have used a roux before. The difference in approach is I would make my roux and add the hot stew a ladle at a time into the roux. After a few ladles and the liquid being sufficiently mixed, it would go back into the big pot of stew. Never noticed a problem doing it this way. ---
**Author:** ![Doctor\_Who](https://avatars.discourse-cdn.com/v4/letter/d/ed8c4c/32.png) [@Doctor\_Who](https://boards.straightdope.com/u/Doctor_Who)\ **Post date:** [January 26, 2011, 4:19pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/13 "2011-01-26T16:19:47Z")
> [@Diogenes\_the\_Cynic](#): > > That’s not a roux, though, it’s a slurry. A roux is flour cooked in fat or oil. I assumed “instant roux” was some sort of jarred roux (which I’ve seen before). If it’s just flour and spices, it’s not a roux unless it’s mixed with a fat. I’m pretty sure no one is disagreeing with you, DtC. We all know the difference between a roux and a slurry. But the OP is asking about a product, called “instant roux”, which you use like a slurry. Difference is: instead of just being flour or cornstarch, it’s supposed to mimic the flavor of a roux. (Much like my little recipe). Now you want to argue whether or not the instant stuff is a “roux” proper? Justin Wilson would slap us both for even discussing it. Of course not. ETA: Just looked at Wikipedia… Justin Wilson has been dead for 10 YEARS! Man. It feels like yesterday. ---
**Author:** ![pulykamell](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/pulykamell/32/3166_2.png) [@pulykamell](https://boards.straightdope.com/u/pulykamell)\ **Post date:** [January 26, 2011, 4:25pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/14 "2011-01-26T16:25:43Z")
> [@Diogenes\_the\_Cynic](#): > > That’s not a roux, though, it’s a slurry. A roux is flour cooked in fat or oil. I assumed “instant roux” was some sort of jarred roux (which I’ve seen before). If it’s just flour and spices, it’s not a roux unless it’s mixed with a fat. You are technically right, but that technique is sometimes called an oven roux or oven-baked roux or something of that nature. You see, as I mentioned before, with Cajun cooking, the adage goes “first you make a roux…” The purpose of the roux is only partially thickening. More important is the flavor imparted by the roasted flour. Most Cajun roux, at least in recipes I’ve come across, are cooked to at least the peanut butter color stage, some to a dark chocolate. Creole roux tend to be more classical French-style, cooked blonde or perhaps to a light peanut butter color. Anyhow, in recipes simplifying the process or for those diet-conscious folks, the roux can be oven baked to get a similar roasted flavor with far fewer calories and a lot less hovering over the stove, constantly stirring. So, yes, you’re right. It’s not a roux by classical definition. (And I don’t like calling it “roux,” either.) But it is referred to as roux in certain contexts (usually, as “oven roux.”) [Here’s one recipe](http://www.realcajunrecipes.com/recipes/cajun/oven-made-roux/927.rcr) from a Cajun recipe site. ---
**Author:** ![Diogenes\_the\_Cynic](https://avatars.discourse-cdn.com/v4/letter/d/e99b99/32.png) [@Diogenes\_the\_Cynic](https://boards.straightdope.com/u/Diogenes_the_Cynic)\ **Post date:** [January 26, 2011, 4:33pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/15 "2011-01-26T16:33:39Z")
I am originally from Louisana. My grandfather was a genuine Cajun chef. I’ve been cooking Cajun and Creole food all my life. I’m sorry, but I cannot call toasted dry flour a “roux.” ---
**Author:** ![pulykamell](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/pulykamell/32/3166_2.png) [@pulykamell](https://boards.straightdope.com/u/pulykamell)\ **Post date:** [January 26, 2011, 4:35pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/16 "2011-01-26T16:35:50Z")
> [@Diogenes\_the\_Cynic](#): > > I am from Louisana. My grandfather was a genuine Cajun chef. I’ve been cooking Cajun and Creole food all my life. I’m sorry, but I cannot call toasted dry flour a “roux.” Like I said, I don’t like it, either, but there it is. Don’t even get me started on what some folks call “chili” or “barbecue.” 😉 ---
**Author:** ![Chefguy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chefguy/32/138_2.png) [@Chefguy](https://boards.straightdope.com/u/Chefguy)\ **Post date:** [January 26, 2011, 4:41pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/17 "2011-01-26T16:41:39Z")
Slurry is also called white wash or even cowboy roux, but I’ve tasted cowboy coffee and I think I’ll pass. 😃 ---
**Author:** ![Doctor\_Who](https://avatars.discourse-cdn.com/v4/letter/d/ed8c4c/32.png) [@Doctor\_Who](https://boards.straightdope.com/u/Doctor_Who)\ **Post date:** [January 26, 2011, 4:53pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/18 "2011-01-26T16:53:52Z")
From now on, all “instant roux” products will be referred to as: “Non-Roux Un-Cajun Soul-less Baked Flour Mixtures\*”. Everybody happy now? Oh, and don’t worry… I already reported it to the mods so they can change the thread title to: “Cooking with Non-Roux Un-Cajun Soul-less Baked Flour Mixture in a crock pot.” - Not made or associated with the State of Louisiana ---
**Author:** ![Diogenes\_the\_Cynic](https://avatars.discourse-cdn.com/v4/letter/d/e99b99/32.png) [@Diogenes\_the\_Cynic](https://boards.straightdope.com/u/Diogenes_the_Cynic)\ **Post date:** [January 26, 2011, 4:57pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/19 "2011-01-26T16:57:38Z")
I appreciate that. ---
**Author:** ![llcoolbj77](https://avatars.discourse-cdn.com/v4/letter/l/eb9ed0/32.png) [@llcoolbj77](https://boards.straightdope.com/u/llcoolbj77)\ **Post date:** [January 26, 2011, 5:59pm UTC](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028/20 "2011-01-26T17:59:42Z")
I agree with **pulykamell** … this is what I do, and it works beautifully: About 20 minutes before you want to eat: -3 tbs. butter -3 tbs. flour - 1 to 2 ladels full of hot stock from crock pot In a small pot, on med.high heat, mix flour and butter. Let the blond paste cook about two minutes. Add in one ladel of stock from the crock pot. Whisk like the dickens. When incorporated, add in second ladel of stock. Whisk like the dickens. Add this mixture directly into the crock pot. Stir well to incorporate. Let the crock pot go an additional 20 - 30 minutes. I always use this method and I have never had lumpy stew or flour-y tasting stew. Just my two cents. [Next page](https://boards.straightdope.com/t/cooking-with-roux-in-a-crock-pot/569028.md?page=2)