Preheat the oven to 375°F. Line the muffin tin with liners and set aside. This recipe makes 16 regular-sized muffins total.
In a medium-sized bowl, add in flour, baking soda, baking powder, cinnamon, nutmeg, allspice, ginger, and salt. Mix together and set aside.
2 1/2 cups all-purpose flour, 1 tsp baking soda, 2 tsp baking powder, 2 tsp cinnamon, 1/2 tsp ginger, 1/4 tsp allspice, 1/4 tsp nutmeg, 1/4 tsp salt
In a large bowl, whisk brown sugar, oil, eggs, pumpkin, and vanilla. Whisk together until well combined.
1 1/2 cups dark brown sugar, 1 cup oil, 3 eggs, 1 3/4 cups pumpkin puree, 1 tbsp vanilla
Pour the dry ingredients into the wet and using a spatula, gently fold to create a soft muffin batter.
Evenly divide the batter between the liners, they should be almost or all the way full. Using a cookie scooper helps big time to minimize the mess. Sprinkle white sugar on top.
Bake the muffins at 375°F for 25-30 minutes. The muffins are ready when a toothpick inserted comes out clean. Every oven differs, so keep an eye out after the 20 minute mark.
These muffins stay fresh covered at room temperature for a few days, or in the refrigerator in an airtight container for up to 1 week!