Can I mix brownie batter a day ahead of baking?

I have a busy weekend & I’m trying to make the most of available prep time. I have to bake a batch of brownies on Sunday. Nothing unusual in the recipe: butter, eggs, choc chips, unsweetened choc, sugar, flour, baking powder, salt, vanilla, coffee. Standard stuff.
Can I make the batter on Saturday, refrigerate overnight, bring to room temp Sunday & bake?

  • Posted by: JAC
  • March 5, 2020


VioletFlame June 15, 2022
Alice Medrich, who includes this genius tip in her book Seriously Bitter Sweet: The Ultimate Dessert Maker's Guide to Chocolate (via The Kitchn). "Refrigerating the brownie batter in the pan for several hours, or as long as two days before baking, wreaks enormous transformations: it improves the top gloss and crustiness, and it also blends the flavors so that the brownies taste much richer — and the texture is chewier too."

Nancy March 6, 2020
It won't work because the baking powder will be both activated and deadened by mixing with liquid and not baking the batter.
To save time, mix one day the dried ingredients & wet ones separately (sugar counts as a wet).
Store covered (wets in fridge, dries room temp).
Second day, mix and bake.
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