Try this Oatmeal Banana Muffins recipe
Why are the oats soaking in dairy instead of going straight into the dry bowl? Hydrating rolled oats in a mixture of yogurt and milk for ten minutes softens the fibrous bran layers before baking, preventing a gritty texture in the final crumb. Thorough hydration allows the starches to absorb moisture evenly, which changes how the batter behaves in the oven. Incorporating overripe bananas with heavy black spots on the peel guarantees natural sweetness and enough free water to activate the chemical leaveners.
Success with dense grain batters relies entirely on managing gluten development and chemical leavening reactions simultaneously. Mixing the dry components separately ensures the baking powder and baking soda distribute uniformly alongside the cinnamon and nutmeg. When combining wet and liquid components, fold gently with a spatula just until dry streaks disappear to avoid tough, rubbery results. Fill each greased cup two-thirds full to leave adequate headspace for the vertical rise driven by the two teaspoons of baking powder.