# Changing cookie recipe to brownie recipe?

**URL:** <https://boards.straightdope.com/t/changing-cookie-recipe-to-brownie-recipe/464755>\
**Category:** Cafe Society\
**Created:** [September 22, 2008, 11:10pm UTC](https://boards.straightdope.com/t/changing-cookie-recipe-to-brownie-recipe/464755 "2008-09-22T23:10:53Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Khadaji](https://avatars.discourse-cdn.com/v4/letter/k/9e8a1a/32.png) [@Khadaji](https://boards.straightdope.com/u/Khadaji)\
**Post date:** [September 22, 2008, 11:10pm UTC](https://boards.straightdope.com/t/changing-cookie-recipe-to-brownie-recipe/464755/1 "2008-09-22T23:10:53Z")

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OK, I want to back a Tollhouse brownie. I have a Tollhouse cookie recipe, can I change a few ingredients and make brownies instead? (I tried just using the cookie recipe and the edges got too crisp.)

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**Author:** ![Doctor\_Peste](https://avatars.discourse-cdn.com/v4/letter/d/3ec8ea/32.png) [@Doctor\_Peste](https://boards.straightdope.com/u/Doctor_Peste)\
**Post date:** [September 22, 2008, 11:16pm UTC](https://boards.straightdope.com/t/changing-cookie-recipe-to-brownie-recipe/464755/2 "2008-09-22T23:16:51Z")

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> [@Khadaji](#):
>
> OK, I want to back a Tollhouse brownie. I have a Tollhouse cookie recipe, can I change a few ingredients and make brownies instead? (I tried just using the cookie recipe and the edges got too crisp.)

I don’t see why not… It sounds pretty much like a chocolate chip blondie recipe. Your best bet might be to look up a handful of brownie/blondie recipes to see how to tweak the wet vs. dry ingredient ratios, though, as I don’t rightly recall how the two differ all that much (I do know that I once tried to turn a brownie recipe into a cookie recipe _without_ changing a whole lot, and it ended in fudgey disaster).

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**Author:** ![freckafree](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/freckafree/32/3050_2.png) [@freckafree](https://boards.straightdope.com/u/freckafree)\
**Post date:** [September 22, 2008, 11:55pm UTC](https://boards.straightdope.com/t/changing-cookie-recipe-to-brownie-recipe/464755/3 "2008-09-22T23:55:39Z")

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I’ve done this before. I urge great caution before going down this path. 😃

You don’t have to change a thing. Take your Tollhouse dough and smooth it into a 9 x 13 pan. Bake like brownies. You may have to experiment with baking time.

NOM NOM NOM

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**Author:** ![kittenblue](https://avatars.discourse-cdn.com/v4/letter/k/ba8739/32.png) [@kittenblue](https://boards.straightdope.com/u/kittenblue)\
**Post date:** [September 23, 2008, 12:19am UTC](https://boards.straightdope.com/t/changing-cookie-recipe-to-brownie-recipe/464755/4 "2008-09-23T00:19:19Z")

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They are called Marble Squares when you bake them like a brownie…at least, that was the official name on the chocolate chip bag. There is a slight difference in the recipe…[which is the baking time](http://www.verybestbaking.com/recipes/detail.aspx?ID=18476) and I do mine in a 9x13 sometimes instead of the 11x15 the pan variation calls for. 20-25 minutes at 375’.