- Total: 1 hr 20 min(includes cooling time)
- Active: 15 min
- Yield:12 muffins
- Position an oven rack in the center of the oven and preheat to 400 degrees F. Line a 12-cup muffin pan with paper liners. Whisk together the whole-wheat flour, all-purpose flour, baking powder, cinnamon, baking soda and salt in a medium bowl.
- Whisk together the coconut oil, brown sugar, maple syrup, vanilla and egg whites in a separate medium bowl until well combined. Stir in the mashed banana. Add the dry ingredients to the wet and stir until combined. Stir in the chopped walnuts if using.
- Fill the lined muffin cups about three-quarters of the way with the batter (a generous 1/4 cup in each; see Cook’s Note). Bake on the center rack until a cake tester or toothpick inserted in the center of a muffin comes out clean, 20 to 25 minutes. Let cool 10 minutes, then remove the muffins to a wire rack to cool completely.
When measuring flour, we spoon it into a dry measuring cup and level off excess. (Scooping directly from the bag compacts the flour, resulting in dry baked goods.) A cookie or ice cream scoop makes it easier to portion the batter.
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