Position your oven rack in the middle of the oven, and preheat oven to 325°F. Grease and flour a 9 x 5″ loaf pan; set aside.

Combine flour, cinnamon, baking powder, baking soda, salt, nutmeg, and allspice in a medium bowl and whisk until thoroughly combined; set aside.

In another bowl, or bowl of an electric mixer, beat eggs on medium-high speed for two minutes or until lightened in color. Add the brown sugar, mixing for about 2 minutes, then the granulated sugar, mixing for about 1 minute. Add the orange and lemon zests, if using, and beat for another minute. Scrape down the bowl as needed.

Drizzle in the canola oil with beater on medium-low. Reduce speed to low and add the pumpkin puree. Mix until thoroughly combined. Add the dry ingredients in two additions and blend for 10-15 seconds just until incorporated. Fold in the pecans using a rubber spatula.

Spoon the batter into your prepared loaf pan and bake for 60-65 minutes or until a toothpick inserted in center comes out clean. Cool loaf in pan for 10 to 15 minutes, then remove and cool completely on a wire rack.

If you’re going to frost the loaf, you can make the frosting while the loaf is cooling…