Some brands of almond milk contain sugar or other added sweeteners that may affect the taste of the recipe. Almond milk won't be as thick, but the acid helps reproduce the buttermilk flavor. The best way to prepare some of your favorite buttermilk sandwiches is to take the original recipe and replace regular buttermilk with your own homemade vegan buttermilk. Vegan buttermilk will become one of the most used ingredients in a short time and, since it is full of protein and nutrients, homemade whey is a very healthy alternative to the original.
Cultured buttermilk is usually the one used for baking, while traditional buttermilk is the liquid left over after making butter.