I love this recipe because it uses an entire half orange, peel and all, and tastes like a cross between a cheesecake and a pound cake! This recipe is adapted from "Great Coffee Cakes, Sticky Buns, Muffins and More" by Carole Walter. For an optional Orange Glaze: Combine 1 cup powdered sugar, 5 tablespoons fresh orange juice, and 1 ½ tsp light corn syrup. Whisk until smooth and pour over muffins. The recipe makes 14 medium muffins, or 12 slightly larger ones.