Blueberry Buckle Coffee Cake

Ingredients (14)

• 2 cups all purpose flour
• 3/4 cup sugar
• 3 teaspoons baking powder
• 3/4 teaspoon salt
• 1/4 cup (4 Tablespoons) butter, softened
• 3/4 cup milk
• 1 egg
• 1 teaspoon lemon zest
• 2 Tablespoons flour
• 1 pint blueberries
• 3/4 cup sugar
• 1/3 cup flour
• 1/2 teaspoon cinnamon
• 1/4 cup butter