In a large bowl mix bananas, eggs, sour cream, and butter
Sift and then add Sun Flour Mills Whole Grain Flour, baking soda, cream of tarter, xanthan gum, guten free oat bran, and sugar
Mix on low speed for 30-60 seconds or until well blended
If desired, stir in nuts
Bake at 350 degrees in mini loaf pans for 15-20 minutes or standard loaf pan for 40-45 minutes