There are several recipes that call for buttermilk. However, it is worthy to note that almost all recipes can be altered depending on who’s making it. For the purpose of answering this question, here are some of the recipes which call for buttermilk: Buttermilk biscuit which you can prepare for about 25 minutes, buttermilk waffles, buttermilk scones, blueberry buttermilk pancake, buttermilk waffles (may it be gingerbread or any kind of waffles), buttermilk chicken, panna cotta with buttermilk, buttermilk gravy, buttermilk and lemon chess pie, fried calamari, buttermilk icing for pastries, ranch dressing, and donut muffins.
Again, there are several more recipes which call for the use of buttermilk, but some people opt this ingredient. If buttermilk is available in your local grocery, buy it and use it when the recipe calls for it.