Zesty Orange Muffins

Ingredients

• 2 cups all-purpose flour
• 1/2 cup granulated sugar
• 1/4 cup packed brown sugar
• 1 tablespoon baking powder
• 1/2 teaspoon salt
• Zest of 2 large oranges
• 3/4 cup freshly squeezed orange juice
• 1/2 cup unsalted butter, melted and cooled
• 2 large eggs
• 1 teaspoon vanilla extract
• 1/2 cup milk
• 1 cup chopped walnuts (optional)
• 1/2 cup powdered sugar (for glaze)
• 2 to 3 tablespoons orange juice (for glaze)