for German style, start with about half a package of bacon. Cook it very slowly, on low. Just leave it in the frying pan for 20 minutes or so, then flip it over and do the same again. You want to render the bacon, so you can use the fatty bits for crunch but they won’t have that fat content that makes it get flabby in the fridge.
About half way through put your potatoes on to boil. I strongly prefer redskins so I can leave the skin on.
Remove the super extra dry and crispy bacon from the pan and drain it well on paper towels. You do not want little white drips of fat congealing on the bacon bits when you chill it!
Pour off most of the grease and reserve for making scrambled eggs tomorrow morning. There should be a small amount left in the pan along with lots of crispy bits to flavor the dressing. Add 1 cup of white wine vinegar, or a 1/4 up white vinegar and a cup of Rhine wine.
I sort of eyeball this next bit, but I add about a tablespoon of celery seed, and one or two caraway seeds. Go really light on the caraway or your salad will just taste like wet rye bread. But a grain or two will give it that distinctly German “tang.” Also cracked black pepper and about 1/2tsp of marjoram.
Heat that just until it starts to reduce, then take it off the heat. You’ll want to add in to the potatoes warm but not hot.
Chop some fresh celery and add it to the cooling dressing. It should be al dente (not crispy or soft, in between) in the salad.
Mix it all together and chill. Add salt and acid as needed. If you have good pepper, then you may want to add a bit more so the bright flavors are represented.
Please resist all recommendations to add raw red onions. If you must have onions then chop them finely and heat them with the dressing. If thy are raw they will mask the earthiness of the potatoes and wreck the whole flavor profile. (Not that I have any strong opinions on the subject.
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Right before serving, crunch up the bacon and sprinkle on top.
It’s fairly easy to turn this into a full lunch by just mixing in some frozen peas.