Ingredients
Equipment
Method
Prep and preheat
- Preheat the oven to 375°F and line a 12-cup muffin tin with paper liners.
- Mash the ripe bananas until smooth, then measure out the required amount for the batter.
Mix batter
- Whisk the melted butter, sugar, egg, vanilla, and milk into the mashed bananas until smooth.
- Fold in the all-purpose flour, baking powder, baking soda, cinnamon, nutmeg, and salt until just combined, with no dry streaks.
- Fold in 3/4 cup of the chopped walnuts so they’re evenly distributed through the batter.
Fill and bake
- Divide the batter among the muffin cups, filling each about 3/4 full.
- Press the remaining chopped walnuts into the tops of each muffin so they stick as the batter bakes.
- Bake for 18–22 minutes at 375°F until golden and domed, and a toothpick comes out clean.
Notes
For bakery-height domes, mix just until the flour disappears—overmixing can make muffins tough. Store in an airtight container at room temperature for up to 3 days or refrigerate up to 5 days; freeze up to 2 months. For a lighter option, replace the butter with an equal amount of melted neutral oil (like avocado or canola) for a similar texture.
