Your Boxed Mix Muffins Will Taste Incredible With One Simple Swap - Chowhound

Are you fuzzy on what buttermilk even is? Simply put, it's milk that's been fermented with the addition of lactic acid bacteria. When combined with alkaline baking powder or soda, the acidic buttermilk expands and creates air bubbles in the muffin batter. Remember that middle school baking soda plus vinegar science experiment? A similar reaction occurs to create lighter, bouncier baked goods. Advertisement Though…