Step 1: Preheat your oven to 350°F (175°C) and grease a 9×5 inch loaf pan with butter or non-stick cooking spray.
Step 2: In a medium bowl, whisk together the flour, baking soda, salt, cinnamon, nutmeg, cloves, and ginger until well combined.
Step 3: In a large bowl, whisk the pumpkin purée, vegetable oil, granulated sugar, brown sugar, eggs, and vanilla extract until the mixture is smooth and the sugars are mostly dissolved.
Step 4: Gradually add the dry ingredients to the wet ingredients, stirring gently with a spatula just until no streaks of flour remain. Do not overmix.
Step 5: Fold in the chocolate chips gently. If desired, toss them in a teaspoon of flour first to prevent sinking.
Step 6: Pour the batter into the prepared loaf pan and smooth the top. Sprinkle a few extra chocolate chips over the surface.
Step 7: Bake for 55-65 minutes, or until a toothpick inserted into the center comes out clean or with just a few moist crumbs (avoiding the melted chocolate chips).
Step 8: Allow the bread to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely before slicing.