In a bowl, mix together gluten-free flour, salt, baking soda, baking powder, cinnamon, ginger, nutmeg, and cloves. Set aside.
In a large bowl, combine pumpkin, sugar, maple syrup, egg, and olive oil. Add the flour mixture and stir. Cover the bowl and let the batter rest for 30 minutes.
While the batter rests, preheat the oven to 340°F/170°C (320°F/160°C for dark metal loaf pan). Grease and line an 8.5x4.5in (20x10cm) loaf pan with parchment paper.
Pour the batter into the prepared loaf pan and top with pepitas. Bake for 55-60 minutes (45-50min for dark metal pans), or until a skewer inserted in the middle comes out clean. Let the bread rest in the pan for 5-10 minutes before taking it out on a wire rack to cool completely.
Notes
Storing: You can keep leftovers in an airtight container for up to 3 days at room temperature. Adding a piece of parchment paper, plastic wrap, or aluminum foil to the sliced surface will help prevent it from drying out.Freezing: Slice the bread, wrap each piece with plastic or aluminum foil, and put them in a freezer bag to keep it in the freezer for up to 3 months. Either thaw them on the counter or heat them in the microwave for 10-20 seconds before eating!