Before you start, it's important to note that this recipe makes 2 loaves of bread. Preheat the oven to 350℉
Grease the bottoms and sides of a 9x5 loaf pan with butter. EXPERT TIP: Do not add flour. The butter is all that's needed to ensures no sticking on the side of the loaf pan. If using a standing mixer, attach the wire whisk attachment.
In the large mixing bowl of a standing mixer, add 3 cups of sugar and 1 cup of canola oil. Mix on low for 1 minute until just combined.
Add in all 4 eggs. Mix on medium-low until well combined, about 2 minutes. Set aside.
Remove the wire whisk attachment and put on the paddle attachment.
In a separate large bowl, add in 3 ½ cups of flour, 1 ½ teaspoons of salt, 2 teaspoons of baking soda, 1 teaspoon of cinnamon, and 1 teaspoon of nutmeg. Stir until combined.
In batches, slowly add in all the dry ingredients to the large mixing bowl of wet ingredients and mix on low until combined. As the batter starts to thicken, slowly add in the water.
While still mixing, slowly add in 15 ounces of pumpkin puree and 1 mashed banana.
Mix until well combined, about 2-3 minutes.
Pour the batter into the prepared loaf pan, a little over half-way full.
Bake for 1 hour and 8 minutes.
When done, remove the loaf pan from the oven and allow to completely cool, about 30-45 minutes.
Slice and serve.