Boyfriend's Best Banana Bread Recipe (Gluten-Free) by Katiiez. Wahoo! Mix 9 bananas, 1 6oz cup plain Greek yogurt, 3/4 cup egg whites, 3 cups gluten-free flour mix which already has xanthan gum, 2 tsp baking soda. Mix it up! Bake at 350 for 1 hour. This is super moist and chewy! Mmm. Cool and devour. Gluten free makes it not rise as well, which also means its on the high-end of moistness, but its delicious! Mix your positive vibes into the recipe. Super awesome! Namaste!