Whisk together all ingredients in a large mixing bowl, pouring in the milk last. Adjust consistency of batter with milk.Ladle into your waffle maker and cook until done!
Note: Every protein powder may react differently. With mine, I had to cook them twice as long as I would a normal waffle.
Storage: These are fabulous for making large batches and freezing for future "toaster meals". But I suggest putting little sheets of parchment between them before freezing otherwise you may end up with a block of waffles for breakfast!
Please note that the nutrition data given here is a ballpark figure. Exact data is not possible.