01 -
Preheat the oven to 350°F (175°C) and line a muffin pan with paper liners.
02 -
In a medium bowl, whisk together flour, baking soda, baking powder, salt, cinnamon, and nutmeg.
03 -
In another bowl, mix granulated sugar, brown sugar, oil, eggs, pumpkin puree, milk, and vanilla extract until smooth.
04 -
Gradually fold the dry ingredients into the wet mixture until combined.
05 -
Spoon the batter into the muffin cups, filling each about 2/3 full.
06 -
In a small bowl, prepare the streusel by mixing flour, brown sugar, cinnamon, and melted butter until crumbly.
07 -
Sprinkle the streusel topping over each muffin.
08 -
Bake for 18-20 minutes or until a toothpick inserted into the center comes out clean.