Can you substitute buttermilk with milk? No, unless you hack it. But the hack is so easy, it barely counts as work. You can do this with your eyes closed. Really.
So next time you see a recipe calling for buttermilk, take a breath. You’re not trapped. You’re just a tablespoon of vinegar away from baking glory. Go make those biscuits.
And if you mess up? That’s okay. We’ve all made flat pancakes before. It builds character. Now pass the maple syrup.