Step 1

Preheat oven to 350 degrees Fahrenheit. Butter and flour an 8x4-inch bread pan, or use parchment paper on the bottom and cooking spray on the sides.

Step 2

In a large bowl, mash bananas thoroughly with a fork, until smooth. Add melted butter, sugar, egg, and vanilla. Mix well.

Step 3

Add the flour, baking soda, and salt. Stir the dry ingredients slightly before folding them into the wet batter. Mix until flour barely disappears. Pour batter into the prepared bread pan.

Step 4

In a small bowl, combine streusel ingredients and mix together with a fork until fine crumbs. Sprinkle over the banana bread batter. (Can squeeze crumbs together for bigger chunks.)

Step 5

Bake at 350˚F for 50-60 minutes, or until a toothpick comes out clean from the center. (If the top is browning faster than the bread is baking, cover lightly with foil and continue baking.)

Step 6

Allow bread to cool in pan for 5 minutes before inverting; then cool completely on a wire cooling rack. Slice with a serrated knife and serve. Store leftovers in an airtight container, or wrapped tightly with plastic wrap.