Ask the Test Kitchen
When a recipe calls for buttermilk, can I add vinegar or lemon juice to milk rather? —A.C., New York, New YorkThere are a number of substitutes for buttermilk in baking. For each cup of buttermilk, you may use 1 tablespoon of white vinegar or lemon juice plus enough milk to measure 1 cup. Stir, then allow stand for five minutes. You can also use 1 cup of simple yogurt or 1-three/four teaspoons cream of tartar plus 1 cup milk.
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