Creating Double Chocolate Banana Bread is simple if you follow these easy steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C). Grease a 9×5-inch loaf pan or line it with parchment paper.
2. Mash Bananas: In a large mixing bowl, mash the ripe bananas until smooth.
3. Mix Sugars and Butter: Add the granulated sugar, brown sugar, and melted butter to the mashed bananas. Stir until well combined.
4. Add Eggs and Vanilla: Beat in the eggs and vanilla extract until the mixture is smooth.
5. Combine Dry Ingredients: In another bowl, whisk together the flour, cocoa powder, baking soda, and salt.
6. Combine Mixtures: Gradually add the dry ingredients to the banana mixture, stirring until just combined. Do not overmix.
7. Fold in Chocolate Chips: Gently fold in the chocolate chips and nuts (if using) until evenly distributed.
8. Pour Batter: Pour the batter into the prepared loaf pan, smoothing the top with a spatula.
9. Bake: Place the pan in the preheated oven and bake for 50-60 minutes, or until a toothpick inserted in the center comes out clean.
10. Cool: Once baked, remove the bread from the oven and let it cool in the pan for 10-15 minutes. Then, transfer it to a wire rack to cool completely.

Following these steps will guide you in creating a loaf of Double Chocolate Banana Bread that is sure to impress everyone around you!