1teaspoonvanilla, can be omitted if using vanilla protein
Instructions
Make the batter:
In a large bowl, combine the flour, protein powder, baking powder, and salt.
Make a well in the middle and pour the milk, eggs, butter, and vanilla (if using). Break up the eggs with a fork first, then incorporate them into the other liquid ingredients (you could do this in a separate bowl, but why dirty another thing?). Mix the batter, working the dry ingredients from the outside-of-the-bowl-in, until there are no visible lumps.
Cook:
Heat the waffle maker and grease it with oil if needed. Once hot, pour enough waffle batter to fill the space most of the way; the batter will expand. If using a mini waffle maker, pour ¼ cup per waffle. Close the waffle maker and cook the waffles until steam stops coming out the sides, they're golden brown, and they lift from the plate easily.
Remove each waffle from the waffle maker and repeat the process with the remaining batter.
Serve and store:
Serve these waffles with your favorite toppings and syrups.
Leftover waffles can be kept in the fridge for up to 4 days in a zip bag or container. Or, freeze them flat, then transfer them to a freezer zip bag and keep frozen for up to 3 months. To reheat, microwave or toast them.
Notes
Each waffle has 10g of protein, which is twice that of a frozen protein Eggo waffle (5g ea).
I'm using protein powder with 25g per scoop; if yours has more per scoop, your waffles will have more protein.