Hi everyone, does anyone know how to substitude buttermilk in a cake recipe? My friend asked for a red velvet cake, which I have done before when I lived in NY, now I live in Puerto Rico and the supermarkets here does not carry buttermilk. I would love to bake her the cake but what can I do? thanks for any input.

Add 1 tablespoon of vinegar or lemon juice per cup of milk, let sit for 5 minutes and you have buttermilk. I just made RV today and used this, it came out great!

ditto, I do the same

realllllllllllly that's it? thanks that's awsome. will do it and let you know how it came out. I'm so excited....

Me too. I never buy buttermilk.

my mama did this when i was growing up. not new to me.ha!