Cranberry-Orange Muffins
1 cup powdered sugar 1 egg 1 orange, zested 1 pinch grated orange zest 1 tablespoon orange juice, or more as needed 1 teaspoon baking powder 1 ⅓ cups fresh cranberries 2 cups all-purpose flour ½ cup white sugar ½ teaspoon baking soda ½ teaspoon salt ¾ cup orange juice ⅓ cup butter, melted, cooled