Preheat the oven to 350°F (175°C). Grease a 9x5-inch loaf pan with butter or nonstick spray and line it with parchment paper for easy removal.
In a medium bowl, whisk together the gluten-free flour, baking soda, baking powder, salt, cinnamon, nutmeg, cloves, and ginger until well combined. Set aside.
In a large bowl, combine the pumpkin puree, granulated sugar, brown sugar, vegetable oil, eggs, milk, and vanilla extract. Whisk until smooth and evenly incorporated.
Gradually add the dry ingredients to the wet ingredients, stirring with a spatula until just combined. The batter should be thick and smooth with no visible streaks of flour.
Pour the batter into the prepared loaf pan and spread it evenly with a spatula. Tap the pan gently on the counter to remove any air bubbles.
Bake for 50-60 minutes, or until a toothpick inserted into the center of the bread comes out clean. The top should be golden brown and firm to the touch.
Allow the bread to cool in the pan for 10 minutes, then transfer it to a wire rack to cool completely before slicing.