These healthy chocolate protein mug cakes are 100 calories LESS than the other recipes, and just as yummy!At just 204 calories, and with 8.8g of protein you can enjoy this yummy microwave chocolate cake without guilt. Special Tip: All protein powders are a little different. If you choose a different protein powder you may need to add in more liquid. Just add in 1/2 tablespoon at a time until you get a thick batter like consistency.