In this food hack I will show you how to make Buttermilk. This easy homemade buttermilk substitute recipe is perfect to use with pancakes, cupcakes, breads, etc. If you can't find buttermilk, or it is not available in your country, or you just don't want to go to the store to get some you can use this substitute. Why use buttermilk in baking? The slightly acidic batter helps the baked goods be more moist and tender by breaking down the gluten. Super simple to make if I can do it, you can do it....