Preheat your oven to 350°F. Grease and line TWO 9x5 inch loaf pans.
Stir together flour, pumpkin pie spice, baking powder and salt in a large mixing bowl and set aside.
Whisk eggs, sugar, pumpkin and melted butter together in a another bowl.
Pour the wet into the dry ingredients and fold in just until combined, optional to add chopped nuts into your batter.
Place batter into pans, and add streusel on top. Bake at 350°F for 40-45 minutes, or until a toothpick inserted into the middle comes out clean.
Let cool for 10 minutes!
