In a mixing bowl, sift the powdered sugar to remove any lumps and make it smooth. Add freshly squeezed orange juice and grated orange zest (if using) to the powdered sugar. Mix these ingredients together until well combined. If the glaze seems too thick, gradually add orange juice, starting with 1 tablespoon. Stir well after each addition until you reach your desired glaze consistency.
You can make it thinner or thicker by adjusting the amount of orange juice. Optionally, add vanilla extract for a subtle vanilla flavor that complements the orange. Once you've achieved the desired consistency and flavor, your orange glaze is ready to use. Drizzle the glaze over your orange cranberry muffins while they are still warm. Use a spoon or a small spatula to help spread it evenly. Allow the glaze to set for a few minutes before serving. It will slightly harden as it cools.
Camila's Quick Note: For an alternative to sugar, replace it with 360g of streusel topping. This muffin base can serve as a versatile foundation for various muffin varieties, including:
Blueberry Muffins: Omit the cranberries and lemon zest, and instead, fold in 340g of blueberries (fresh or frozen). Follow the remaining ingredients and instructions as stated above.
Mixed Berry Muffins: Omit the cranberries and lemon zest, and instead, fold in 340g of mixed berries (fresh or frozen). Mixed berries could include raspberries, blueberries, chopped strawberries, or quartered blackberries. Follow the remaining ingredients and instructions as stated above.