Preheat your oven to 180°C (350°F). Grease or line a muffin tin with paper liners to prepare for baking.
In a large mixing bowl, whisk together the flour, baking powder, baking soda, pumpkin pie spice, and salt until evenly combined. This creates a flavorful dry base for your muffins.
In a separate bowl, mash the pumpkin purée until smooth. Add the brown sugar, oil, eggs, and vanilla, then whisk until the mixture is smooth, slightly frothy, and fragrant.
Pour the wet mixture into the dry ingredients. Gently fold everything together with a spatula, just until no dry streaks remain. The batter will be thick but moist, with a slightly lumpy texture.
Divide the batter evenly among the muffin cups, filling each about two-thirds full. This helps create a nice domed top and prevents overflowing during baking.
Bake the muffins in the preheated oven for 20-22 minutes. They should turn golden on top and a toothpick inserted into the center should come out clean.
Remove the muffins from the oven and let them cool in the tin for about 5 minutes. Then transfer them to a wire rack to cool completely, allowing the crumb to set and flavors to meld.
Once cooled, enjoy these cozy muffins warm or at room temperature. They’re perfect paired with a cup of coffee or tea, and their spiced aroma will fill your kitchen with autumnal warmth.
