Preheat oven to 350°F.
In a small bowl, combine flour, baking powder, and baking soda.
In a large bowl, mix together brown sugar, oil, pumpkin pureé, eggs, milk, flavours and salt until well combined.
Add the dry ingredients to the wet mixture, stirring until just combined. Do not overmix.
Line a muffin tin with liners and evenly distribute the batter. Bake for 20-25 minutes or until a toothpick comes out clean. Let muffins cool completely.