Question: is there a substitute for buttermilk for cooking?
By: su chang
Published: February 14, 2011

this is for a baking recipe.

Answers:
Barnaby Dorfman

You can mix yoghurt with water or milk to get a similar effect. Another option is milk with a bit of lemon or white vinegar.
It depends a bit on the recipe. What are you making?
Chris Paulk

To make your own buttermilk: 
4 1/2 TSP WHITE VINEGAR OR FRESH LEMON JUICE
1 CUP MILK 
PLACE THE VINEGAR OR LEMON JUICE IN A GLASS MEASURING CUP. ADD MILK TO EQUAL 1 CUP TOTAL LIQUID. STIR. LET STAND 15-20 MINUTES.
USE AS NEEDED OR REFRIGERATE UNTIL NEEDED.
Michelle Tancioco

Buttermilk 
1 tbsp of white distilled vinegar or fresh lemon juice
1 cup of milk
Mix and let it stand for 5 minutes. ^^
saffronstreaks

Buttermilk
If you add vinegar or lemon juice to milk, it will curdle.
Buttermilk is diluted yogurt, add water to yogurt and mix well.