Blueberry Streusel Muffins

Details

Ingredients

• ½ cup butter, softened
• ¾ cup white sugar
• 2 eggs
• 1 teaspoon vanilla extract
• 2 cups all-purpose flour
• 2 teaspoons baking powder
• ½ teaspoon salt
• ½ cup milk
• 1 ½ cups blueberries
• 2 tablespoons all-purpose flour
• 2 tablespoons brown sugar
• ¼ teaspoon ground cinnamon
• 2 tablespoons butter, chilled