Preheat the oven to 350 degrees Fahrenheit. Lightly coat two 9" x 5" loaf pans with cooking spray.
Place the flour, baking powder, baking soda, salt and pumpkin spice, in a large mixing bowl. Whisk to combine.
Add the pumpkin puree, oil, sugars, eggs, water and vanilla to the flour mixture. Stir until just combined.
Add the chocolate chips and mix to combine.
Spoon the batter into the prepared pans. Sprinkle the tops of the loaves with coarse sparkling sugar, if desired.
Bake the bread for 60 to 80 minutes, or until a cake tester or toothpick inserted in the center of the loaf comes out clean and that same tester inserted about 1/2" into the top of the loaf doesn't encounter any totally unbaked batter.
Remove the bread from the oven, and cool it on a rack. When it's completely cool, invert and serve. * see Chef's tips