Banana Upside-Down Cake

Name: Banana Upside-Down Cake
Prep time: 20 min
Total time: 20 min
Cuisine: American
Ingredients: 4 tablespoons butter, melted; 1/2 cup packed brown sugar; 2 tablespoons water; 3 firm medium bananas, cut into 1/4-inch slices (about 2 cups); 1 box Betty Crocker™ Super Moist™ Yellow Cake Mix; 1/2 cup vegetable oil; 3 eggs; 1 1/2 cups mashed ripe bananas (about 4 medium bananas); 1 teaspoon ground cinnamon