Creating Sweet Potato Banana Bread is straightforward if you follow these simple steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Grease a 9×5-inch loaf pan.
2. Prepare Sweet Potatoes: Boil or bake the sweet potato until tender. Once cooled, peel and mash.
3. Mash Bananas: In a mixing bowl, mash the ripe bananas with a fork until smooth.
4. Mix Sugars and Oils: In a large bowl, combine the sugars and oil. Mix until well blended.
5. Add Eggs and Vanilla: Stir in the eggs and vanilla extract, mixing until combined.
6. Combine Mashed Ingredients: Add the mashed sweet potatoes and bananas to the mixture. Stir until well incorporated.
7. Whisk Dry Ingredients: In a separate bowl, whisk together the flour, baking soda, baking powder, salt, cinnamon, and nutmeg.
8. Combine Mixtures: Gradually fold the dry ingredients into the wet ingredients. Mix just until combined, avoiding over-mixing.
9. Add Nuts (Optional): If desired, fold in chopped nuts for added texture.
10. Pour into Pan: Pour the batter into the prepared loaf pan, smoothing the top with a spatula.
11. Bake: Place in the preheated oven and bake for 50 minutes to 1 hour or until a toothpick inserted in the center comes out clean.
12. Cool: Remove from the oven and let it cool in the pan for 10-15 minutes. Then transfer to a wire rack to cool completely.

Follow these steps closely, and you'll create a delicious loaf that impresses!