Fortunately, there are a few easy ways to whip up a homemade substitute for buttermilk. The first option, to substitute for 1 cup of buttermilk, is to mix 1 cup of regular milk plus 1 tbsp of lemon juice or vinegar and allow it to sit for about 1 minute.
http://bakingbites.com/2014/05/how-to-substitute-for-buttermilk-in-baking/
The second option to substitute for buttermilk is to whisk together 1/2 cup of yogurt or sour cream with 1/2 cup of milk. If you only have Greek-style yogurt on hand, use 1/3 cup yogurt and 2/3 cup milk. This mixture may be slightly thicker than store bought buttermilk, but it has good acidity and a very similar flavor to buttermilk for baking.
http://bakingbites.com/2014/05/how-to-substitute-for-buttermilk-in-baking/
Irresistible Raspberry Buttermilk Dumplings. Wonderful twist on this old fashioned favorite, used for dessert or even breakfast! These buttermilk dumplings are light, fluffy, and full of flavor. The very slight tang of the buttermilk compliments the sweetness of the syrup like raspberry dumpling sauce. We love it warm with vanilla ice cream, or they're even great cold!
http://allrecipes.com/recipes/17599/ingredients/dairy/buttermilk/
—A.C., New York, New York. There are a number of substitutes for buttermilk in baking. For each cup of buttermilk, you can use 1 tablespoon of white vinegar or lemon juice plus enough milk to measure 1 cup. Stir, then let stand for 5 minutes. You can also use 1 cup of plain yogurt or 1-3/4 teaspoons cream of tartar plus 1 cup milk.
http://www.tasteofhome.com/cooking-tips/ask-the-test-kitchen/buttermilk-substitute
Get our free emergency substitutions chart! Buttermilk Substitute. For 1 cup buttermilk, substitute 1 tablespoon lemon juice or vinegar plus enough milk to make 1 cup. Let stand for 5 minutes before using. For 1 cup buttermilk, substitute 1 cup plain yogurt. More ingredient substitutions.
http://www.bhg.com/recipes/how-to/cooking-basics/buttermilk-substitute/
A light buttermilk yeast dough starts you off on the right foot for these gooey rolls filled with brown sugar, cinnamon and butter. Once assembled, they can be refrigerated overnight if need be, so you can wake up and pop them right in the oven.
http://allrecipes.com/recipes/17599/ingredients/dairy/buttermilk/
Instructions. 1  Combine the milk and lemon juice. 2  Measure 1 scant cup of milk. 3  Stir in 1 tablespoon of lemon juice or white vinegar. 4  Let stand 5-10 minutes. 5  Let the mixture stand at room temperature for 5-10 minutes. 6  When it is ready, the milk will be slightly thickened and you will see small curdled bits.
http://www.thekitchn.com/how-to-make-a-quick-easy-buttermilk-substitute-cooking-lessons-from-the-kitchn-185757
1 Combine the milk and lemon juice. 2  Measure 1 scant cup of milk. 3  Stir in 1 tablespoon of lemon juice or white vinegar. 4  Let stand 5-10 minutes. 5  Let the mixture stand at room temperature for 5-10 minutes. 6  When it is ready, the milk will be slightly thickened and you will see small curdled bits.
http://www.thekitchn.com/how-to-make-a-quick-easy-buttermilk-substitute-cooking-lessons-from-the-kitchn-185757
—A.C., New York, New YorkThere are a number of substitutes for buttermilk in baking. For each cup of buttermilk, you can use 1 tablespoon of white vinegar or lemon juice plus enough milk to measure 1 cup.
http://www.tasteofhome.com/cooking-tips/ask-the-test-kitchen/buttermilk-substitute
(This substitute will not become as thick as regular buttermilk.) Use the buttermilk. Use this substitute (including curdled bits) as you would buttermilk in your recipe. Other Buttermilk Substitutes: Yogurt: Mix 3/4 cup plain yogurt with 1/4 cup water to thin. Use as you would buttermilk. Sour Cream: Mix 3/4 cup sour cream with 1/4 cup plain water to thin.
http://www.thekitchn.com/how-to-make-a-quick-easy-buttermilk-substitute-cooking-lessons-from-the-kitchn-185757
what to substitute for buttermilk in recipes
The substitute for 1 cup of buttermilk, is to mix 1 cup of regular milk plus 1 tablespoon of lemon juice or vinegar and allow it to sit for about 1 minute. To substitute for 1 cup of buttermilk, is to mix 1 cup of regular milk plus 1 tbsp of lemon juice or vinegar and allow it to sit for about 1 minute.