To prepare a very banana y whole wheat banana bread recipe, you will first need to prepare your bananas. You will need: 1 cup (240 g) whole grain flour, 1 tablespoon (15 ml) baking powder, 1/2 teaspoon cinnamon, 1/4 teaspoon nutmeg, and 1 teaspoon vanilla extract. Preheat the oven to 350?F (180?C) and grease and flour two 9x5-inch loaf pans with non-stick cooking spray. Sift the flour into the dry ingredients and stir until the mixture is evenly coated. Pour the wet ingredients into your dry mixture and mix until it's just combined. Bake the bread for 35 to 40 minutes, or until an inserted toothpick comes out clean. Let it cool before removing it from the pan.