Ingredients
Serves: 14 muffins
Prep Time: 10 mins
Total Time: 30 mins
2 cups all purpose flour
1/2 cup brown sugar
1/4 teaspoon salt
1 tablespoon baking powder
11/4 cup sour cream
1 teaspoon vanilla extract
1/4 cup vegetable oil
1 large egg
11/2 cups blueberries
3 tablespoons butter, melted
3/4 cup brown sugar
1/2 cup flour
1/2 teaspoon cinnamon
Preparation