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Can I substitute 2 egg yolks for one whole egg in a cookie recipe? I have extra yolks on hand with no other plans for them. Many thanks.;o)

AntoniaJames is a trusted source on Bread/Baking.

asked over 3 years ago
6 answers 21878 views
added over 3 years ago

No. You need the proteins in the whites to make the cookie bake and set properly.


hardlikearmour is a trusted home cook.

added over 3 years ago

Per Cook's Illustrated the whites help the cookie to puff and dry out, and the yolks add richness. I think you could still make the cookies, just expect a different texture to the final product than you're used to. Other ideas: you could make French toast with yolks only, citrus curd of one sort or another (I have a mango-lime version posted in my Exotic Pavlova Parfait which you could do a half batch of), you could also add them to scrambled eggs or omelets for an extra delicious version.


Cynthia is a trusted source on Bread/Baking.

added over 3 years ago

The whites also add necessary hydration.


AntoniaJames is a trusted source on Bread/Baking.

added over 3 years ago

Thank you so much, everyone. This is so helpful. I knew you all would come through, and again, am so grateful for the tremendous resource that FOOD52 has always been, thanks to its many generous contributors. Let me tell you about the project to which this relates. Some background: A few months ago and quite by chance, I used some leftover batter from drbabs' extraordinary Chocolate Fantasy Brownie Bites to make some cookies. The dough had been refrigerated, and seemed fairly stiff, so I just dropped it onto a parchment covered baking sheet and 15 minutes later, had a half dozen amazing cookies that were just a bit too "wet". I wanted to do that again for a dessert for a party, but as noted in my question, wanted to use some extra egg yolks. I didn't remember, when I posted the question, that the recipe calls for three eggs. Anyway, based on your answers, I figured that with the 2 whole eggs, and this particular application, I'd probably be okay. So I proceeded accordingly with one adjustment. You see, a few weeks ago while browsing through my ancient (1943 edition) of "The Joy of Cooking," I stumbled on a note by Mrs. Rombauer, about how she'd been urged to include a recipe for butterscotch cookies, which were all the rage then. While urging readers of "The Joy" just to make her butterscotch bar instead, she wrote (with an evident sigh) that anyone who simply had to bake butterscotch cookies should use the bar recipe, but add 2 tablespoons of flour. So I did that too when adapting the Fantasy Brownie Bite recipe. The result? Utter perfection: a moist, slightly chewy cookie with the deep, rich flavor of a fudgy brownie, in a handy, easily-served form. Everyone loved them. Thanks again! ;o)

added over 3 years ago

extra yolks on hand??? Sounds like an excuse to make ice cream to me :)