Before you start, preheat the oven to 375 degrees. Pour the flour, baking powder and salt into a bowl and stir to combine.
In another bowl, beat the egg and add the sugar, brown sugar and milk. Mix. Stir in the cooled melted butter.
Add the wet ingredients to the dry ingredients and mix just enough to combine. Fold in 1 cup of blueberries.
Fill your muffin tin with cupcake liners and fill each ¾ full with the batter.
Bake at 375 degrees for 20 minutes.
Calories: 168kcal | Carbohydrates: 36g | Protein: 3g | Fat: 1g | Cholesterol: 15mg | Sodium: 42mg | Potassium: 126mg | Sugar: 19g | Vitamin A: 60IU | Vitamin C: 1.2mg | Calcium: 57mg | Iron: 1.2mg