The potluck at my sister's place in Dayton taught me a great swap for buttermilk
I was at my sister's potluck in Dayton last month and forgot to grab buttermilk for the cornbread, so a neighbor told me to stir a spoon of lemon juice into a cup of regular milk and let it sit 5 minutes. It worked so well that the cornbread came out the same as always, and now I keep lemon juice on hand for baking. What pantry staples do you swap in when a recipe calls for something you don't have?