Step 1

Preheat oven to 350°F. Prepare an 8x4-inch loaf pan by spraying with nonstick spray.

Step 2

Melt butter and set aside to cool.

Step 3

In a large bowl, mash bananas with a fork. (You can use up to 5 regular sized bananas or 6 small bananas in this recipe.)

Step 4

Add butter, sugar, egg, and vanilla. Mix well.

Step 5

Add in flour, baking soda, baking powder, and salt and mix until ingredients are JUST incorporated. (Be careful not to overmix.)

Step 6

Pour the batter into the prepared loaf pan.

Step 7

Bake for 45 minutes. (Cover with aluminum foil if browning too quickly.)

Step 8

Bake for an additional 15-20 minutes, or until a toothpick comes out with crumbs, but not wet batter.