Banana Bread in a Mug!

3 T. flour

1 T. sugar

1 T. brown sugar

1/8 t. salt

1/8 t. baking powder

1/8 t. baking soda

1 egg

1/4 t. vanilla

1 T. canola oil

1 T. milk

1 ripe banana, mashed

1 T. chopped walnuts

cooking spray

Whisk dry ingredients in a small bowl, add egg and stir until just combined. Mix in vanilla, oil, milk, and banana.  Spray a large mug with cooking spray and pour batter into mug.  Top with walnuts.  Microwave for 3 minutes or until set.