Lemon Blueberry Muffins

Name: Lemon Blueberry Muffins
Ingredients: 2 & 1/2 cup unbleached, all-purpose flour; 3/4 cup granulated sugar; 1/2 teaspoon salt; 2 & 1/2 teaspoon baking powder; 1/4 teaspoon baking soda; 1 cup plain Greek yogurt; 1/2 cup unsalted butter, melted; 2 large eggs, lightly beaten; 1 teaspoon vanilla extract; 1/2 teaspoon lemon extract; 1 tablespoon lemon zest (about 1 lemon); 1 & 1/2 cup fresh blueberries; 1/4 cup granulated sugar; 1/4 cup unbleached, all-purpose flour; 1/4 teaspoon salt; 1/2 teaspoon ground cinnamon; 2 tablespoon unsalted butter, room temperature; 1 cup powdered sugar; 2 tablespoon cold milk; 1 & 1/2 tablespoon lemon zest (about 1 lemon); 1 & 1/2 teaspoon lemon extract