Ingredients
TOPPING
3 Tablespoons sugar
3 Tablespoons brown sugar
1/3 cup flour
5 Tablespoons butter, softened
MUFFIN BASE
2 1/2 cups all-purpose flour
2 1/2 teaspoons baking powder
1 teaspoon salt
1 cup sugar
2 eggs
4 Tablespoons butter, melted
1/4 cup vegetable oil
1 cup buttermilk
2 teaspoons vanilla
BLUEBERRIES
2 cups blueberries
1 Tablespoon flour
1 Tablespoon sugar
Preparation