3 Ingredient Orange Sherbet Cake

3 Ingredient Orange Sherbet Cake 1 box (15.25 oz) White Cake Mix 1 container (6 oz) non-fat Greek yogurt, plain 1 cup orange juice freshly grated orange zest, optional powdered sugar, optional low fat whipped cream, optional In a large mixing bowl, combine cake mix, Greek yogurt and orange juice. Include the zest of one orange, if desired. Pour batter into a greased 8 x8 inch square pan. Bake in a 350º oven for 30 - 33 minutes. Slice into 9 pieces. Garnish with a dusting of powdered sugar and orange peel, or low fat whipped cream, if desired.