1. Milk and Vinegar
Forget store-bought buttermilk! Whip up a substitute with just milk and vinegar. Mix 1 cup of milk with 1 tablespoon of vinegar, and let it sit for 5-10 minutes.
The vinegar curdles the milk, creating a tangy, thickened liquid that mimics buttermilk. This trick adds acidity for flavor and helps baked goods rise.