01 - Preheat oven to 350°F. Grease a 9x5-inch loaf pan and line with parchment paper.
02 - In a medium bowl, whisk together flour, baking soda, baking powder, salt, cinnamon, nutmeg, ginger, and cloves.
03 - In a large bowl, whisk pumpkin purée, eggs, vegetable oil, milk, granulated sugar, brown sugar, and vanilla extract until smooth.
04 - Gently fold dry ingredients into wet ingredients using a spatula until just combined; avoid overmixing.
05 - Fold in chopped walnuts evenly into the batter.
06 - Pour batter into prepared pan and smooth the surface evenly.
07 - Bake 50 to 60 minutes, or until a toothpick inserted near the center comes out clean or with moist crumbs.
08 - Allow to cool in pan for 10 minutes, then remove and cool completely on a wire rack before slicing.