Once you learn how to make a buttermilk substitute, you'll be prepared for any recipe that calls for it. It's so simple to do; just have the pure lemon juice and milk on hand. There is nothing to it. Good thing you searched here and did not run out and purchase some.
Place 1 tablespoon of vinegar or lemon juice in a (one cup) measuring cup and then fill with milk. Let it sit for 15 minutes and it’s ready to go.