Easy Sticky Banana Squares

Preheat oven to 350°F. Spray an 8-inch baking dish with nonstick cooking spray.

In a bowl, combine flour, softened butter, and brown sugar. Stir until crumbly; press into prepared baking dish. Bake for 15 minutes, then set aside to cool.

In a nonstick saucepan over medium-low heat, melt butter. Add marshmallows and stir until melted. Remove from heat and gently stir in bananas. Quickly spread over crust. Allow to cool completely before slicing into squares. Cover and refrigerate leftovers.