Ingredients
3/4
stick (6 tbsp) unsalted butter, melted and cooled
1
cup packed light brown sugar
1
1/2 cups all-purpose flour
1
1/2 cups blueberries (7 1/2 oz)
Special equipment: a muffin pan with 12 (1/2-cup) muffin cups; 12 foil or paper muffin liners
Directions
1.
Put oven rack in middle position and preheat oven to 400°F. Put liners in muffin cups.
2.
Whisk together butter, brown sugar, milk, and egg in a bowl until combined well. Whisk together flour, baking powder, cinnamon, and salt in a large bowl. Add milk mixture and stir until just combined. Fold in blueberries gently.
3.
Divide batter among muffin cups and bake until golden brown and a wooden pick inserted into center of a muffin comes out clean, 25 to 30 minutes.