Peanut Butter Banana Muffins

1 cup all-purpose flour

¾ cup quick cooking oats

⅓ cup packed brown sugar

1 tablespoon baking powder

1 cup milk

½ cup peanut butter

½ cup mashed ripe banana

1 egg, beaten

2 tablespoons vegetable oil

1 teaspoon vanilla extract

¼ cup all-purpose flour

2 tablespoons butter, melted

2 tablespoons packed brown sugar

Preheat oven to 375 degrees F (190 degrees C). Grease 12 muffin cups or line with paper muffin liners.

Combine 1 cup flour, oats, 1/3 cup brown sugar, and baking powder. Whisk together milk, peanut butter, banana, egg, oil, and vanilla. Add banana mixture to dry ingredients, mixing just until moistened. Fill prepared muffin cups 3/4 full.

In a small bowl, stir together 1/4 cup flour, melted butter and 2 tablespoons brown sugar. Sprinkle topping evenly over muffins.

Bake in preheated oven for 18 minutes, until golden brown. Serve warm.