Combine brown sugar, milk, eggs, oil and vanilla in a bowl.
¾ cup brown sugar, ½ cup milk, 2 eggs, ¼ cup oil, 1 teaspoon vanilla
Add mashed bananas.
1 cup bananas
Add flour, baking powder, salt, cinnamon and nutmeg. Mix just until combined.
2 cups flour, 1 tablespoon baking powder, ½ teaspoon salt, ½ teaspoon ground cinnamon, ¼ teaspoon ground nutmeg
Fold in blueberries.
1½ cups blueberries
Scoop batter into greased or paper lined muffin tins.
Sprinkle with sugar.
1 tablespoon coarse sparkling sugar
Bake in a preheated 375°F oven for 18-20 minutes.
Allow muffins to cool slightly then remove from muffin tin and continue cooling on a baking rack.
Notes
Recipe tips
Use really ripe bananas. Look for bananas with a lot of brown on the peel.
Measure out mashed bananas - you'll need 1 cup of mashed bananas which is about 3 medium sized bananas.
Fold dry ingredients into wet ingredients just until mixed. It's okay to have a few areas of dried flour still showing. It will be mixed when adding blueberries.
Add blueberries and fold gently.
Use a greased muffin tin or use paper liners.
Sprinkle with coarse sugar or granulated sugar. It adds a bit of crunch and gives the muffins a bakery style touch.
Frozen blueberries
To use frozen blueberries, do not thaw blueberries before adding