Pre heat your oven to 350 and line a 9x5 loaf pan with parchment paper for easy cleanup.
In a large mixing bowl combine sugar, pumpkin, eggs, oil, water and peanut butter and mix well to combine.
In another bowl mix together flour, baking soda, salt, cinnamon and nutmeg.
Stir the flour mixture into the wet ingredients until just combined, and pour into the prepared loaf pan.
Bake for 60-70 minutes, testing the loaf for doneness with a wooden skewer after 60 minutes. If the skewer comes out clean with no wet batter your loaf is good to go. If there is any batter remaining, cover the loaf with a piece of foil, and bake for an additional 10 minutes.
Cool in the pan for 10 minutes, then finish cooling on a wire rack.
This recipe doubles really well for two loaves. You can eat one now, and freeze one for later!