Consumption of buttermilk has declined since then, and annual sales in 2012 reached less than half that number. [7] However, condensed buttermilk and dried buttermilk remain common in the food industry. … · Buttermilk is a fermented dairy product often used in baking. This article reviews the nutrition, benefits, and downsides of buttermilk and provides substitutes for store-bought varieties. · Here, we'll explain exactly what buttermilk is, what buttermilk is used for, buttermilk vs. milk, the many buttermilk substitutes you can use if you run out, and buttermilk recipes if you want to … · We've all been there–you're several ingredients deep in a recipe and realize it calls for buttermilk, which you don't have. Instead of making a trip to the store, just make your own buttermilk …