1 egg
2 c. Bisquick baking mix
1/4 c. sugar
1/4 tsp. soda
2 tbsp. buttermilk
2 tbsp. vegetable oil, or melted butter
1 c. mashed bananas

Beat egg slightly. Dissolve soda in buttermilk. Stir in remaining ingredients just until moistened. Divide batter evenly among cups. Bake at 400 degrees for 15 to 17 minutes. Makes 12 muffins