Step 1

Preheat oven to 350 degrees F (175 degrees C). Grease the bottom of a 5x9-inch loaf pan.

Step 2

Beat white sugar and butter together in a large bowl with an electric mixer until light and fluffy. Add brown sugar and hot chocolate mix; stir well.

Step 3

Place bananas, peach, milk, eggs, and vanilla extract in a blender; blend until smooth. Stir into butter mixture until well incorporated.

Step 4

Mix flour, walnuts, baking soda, and salt together in a separate bowl; stir into banana-butter mixture until flour mixture is just moistened. Pour batter into the prepared loaf pan.

Step 5

Bake in the preheated oven until a toothpick inserted in the center of bread comes out clean, 50 to 60 minutes. Cool in pan for 5 minutes before transferring bread to a wire rack to cool completely.