Soft, hearty, and filled with chocolate chips, these Banana Oatmeal Chocolate Chip Muffins are a cozy, feel-good bake perfect for breakfast or snacking. This updated version makes taller, softer muffins with a perfect balance of flavor and moisture.
Preheat oven to 375°F (190°C). Line or lightly grease 12 standard muffin cups. For best results, use parchment liners.
In a large bowl, whisk together the flour, oats, brown sugar, baking powder, and salt.
In a separate bowl, combine the melted butter, oil, eggs, vanilla, banana, and milk. Stir until well mixed.
Add the wet ingredients to the dry ingredients and stir just until combined. Fold in the chocolate chips.
Divide the batter evenly among the muffin cups (about 1/4 cup per muffin). The cups will be fairly full.
Bake 24 to 26 minutes, or until the tops are browned and a pick inserted into the center comes out clean.
Cool in the pan for 5–10 minutes, then transfer to a wire rack to cool completely.
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Notes
Bananas: Measure after mashing. You’ll need about 1 cup (around 2 to 3 medium). Using more can make the muffins dense, while less can make them dry.
Oats: Quick oats work best for a soft, uniform crumb, but old-fashioned oats give a chewier texture if you prefer.
Mixing tip: Stir gently once wet and dry ingredients are combined; over-mixing can make the muffins tough.
Liner tip: Use parchment liners or lightly spray paper liners to help prevent sticking.
Storage: Store in an airtight container at room temperature for up to 3 days or freeze for up to 2 months. Thaw at room temperature or warm briefly in the microwave before serving.