3Add 180g of non-fat Greek yogurt, 30-50g of zero-cal sweetener, 2 eggs, 65g of all-purpose flour, 1.5 scoops of whey protein, and 12g of baking powder to the bowl.
4Mix all the ingredients thoroughly with a whisk.
5Pour the batter into a cake pan.
6Bake the cake.
7While the cake is baking, prepare the frosting by mixing 150g of light cream cheese, 180g of non-fat Greek yogurt, 0.5 scoop of whey protein, and 30g of zero-cal sweetener in a bowl.
8Once the cake is baked, frost it with the prepared mixture. Sprinkle cinnamon and sprinkles over the top.