BUTTERMILK SUBSTITUTION
Source: melskitchencafe.com
Lemon and Milk:
In a 1-cup measuring cup, stir in 1 Tablespoon of fresh lemon juice. and let sit for 5 minutes.
OR
Vinegar and Milk
In a 1-cup measuring cup, stir in 1 Tablespoon of white vinegar. and let sit for 5 minutes.
OR
Cream of Tartar and Milk
In a 1-cup measuring cup, stir in 1/2 tablespoon cream of tartar. and let sit for 5 minutes.
OR
Yogurt and Milk
Mix 3/4 cup plain yogurt with 1/4 cup of milk. Stir and make it a quick substitution for buttermilk.