Preheat the oven to 400°F (200°C). Line a muffin tray with paper liners.
Wet ingredients: Mix the soft butter, brown sugar, vanilla extract, and eggs in a large bowl. Mix in the pumpkin puree.⅔ cup unsalted butter/ 150 g + ⅔ cup brown sugar / 120 g + 1 teaspoon pure vanilla extract + 2 eggs large + 1 cup pumpkin puree / 275 g
Dry ingredients: Combine flour, baking powder, spices, and salt in a separate bowl.1⅔ cup all-purpose flour / 200 g + 1 teaspoon ground cinnamon + ½ teaspoon ground nutmeg + ¼ teaspoon ground ginger + ½ teaspoon all-spice + 2 teaspoons baking powder + pinch of salt
Combine batter: Stir into the sugar-egg mixture until just combined. Fold in the chocolate chips.½-1 cup semi-sweet chocolate chips / 50 -100 g
Divide the batter evenly among the muffin cups. Sprinkle the batter with extra chocolate chips if you like.
Bake the pumpkin puree muffins for 20-23 minutes until a skewer inserted in the middle of a muffin comes out clean.
Rest in the tin for about 10 minutes. Transfer to a wire rack and let cool completely.
Sprinkle with some icing sugar before serving (optional).
Notes
Measurements: Using a digital kitchen scale in baking guarantees the best results (the Amazon affiliate link opens in a new tab).
Pumpkin: You can use canned pumpkin puree (not pumpkin pie filling) or homemade pumpkin puree (see blog post for instructions). If using homemade puree, let it cool completely before using it. If too wet, let it drain in a fine mesh sieve for a while.
Sugar: Substitute brown with white sugar.
Spices: Substitute all the spices with 2 teaspoons of the pumpkin spice mix.
Chocolate: Use as many chocolate chips as you like. You can sprinkle the batter with extra chocolate chips as well.
The nutrition is calculated with ½ cup of semi-sweet chocolate chips.