Elvis Muffins

Muffins:

1 1/2 cup flour

1 teaspoon baking soda

1 teaspoon kosher salt 

4 ripe bananas

1 egg

1 teaspoon vanilla

1 cup sugar 

1/4 cup butter, melted and cooled

PB-Bacon Streusel

1/2 cup flour

1/2 cup dark brown sugar

1/2 cup oats

1/2 teaspoon kosher salt

1/4 cup butter

1/4 cup peanut butter

6 slices cooked bacon, finely chopped

Heat oven to 350F. Spray a 12-cup muffin pan or line with paper liners. 

Make muffins: Sift together flour, baking soda and salt. Set aside. In a mixing bowl, mash banana with a whisk until mostly smooth, then whisk in egg and vanilla. Then whisk in sugar and butter. Stir in flour mixture. 

Make streusel: Stir together flour, brown sugar and oats. Cut in butter and peanut butter. Mix in bacon. 

Fill muffin cups with batter, then top each with streusel. Bake until a skewer inserted in the center of a muffin comes out mostly clean, about 45 minutes. Let stand 10 minutes before removing from pan.