SMALL BITES: Famous Blueberry Muffins

Name: SMALL BITES: Famous Blueberry Muffins
Cuisine: American
Ingredients: 2 and 1/2 cups all-purpose flour; 1 cup whole wheat flour; 2 tablespoons baking powder; 1 teaspoon baking soda; 1 cup sugar; 1 teaspoon fine sea salt; 5 large eggs slightly beaten; 1 1/2 cups whole milk or buttermilk; 4 ounces unsalted butter, melted and cooled; 4 cups blueberries, fresh or frozen; Zest of one lemon; 1 tablespoon vanilla; 6 teaspoons coarse sugar (optional); 1 tbsp juice of the lemon; 1 tablespoon milk; 1 cup powdered sugar