Fluffy protein waffles are a high-protein freezer-friendly breakfast made without protein powder for a breakfast that still feels like classic homemade waffles.
Add the oats to a blender and blend until fine. If using oat flour, mix all of the ingredients in a large bowl.
Add all remaining ingredients except for flour and blend until smooth (don't over-blend).
Add the all-purpose flour last and pulse in the blender until just combined, being careful not to over-blend.
Add 2/3 cup of batter to your waffle iron and cook until set and lightly golden, about 2 to 2 1/2 minutes depending on your waffle iron. I recommend checking right before 2 minutes. Repeat with the remaining batter.
Notes
Don't overblend the batter. This creates dense waffles instead of fluffy.
Add the all-purpose flour last. This creates a smoother batter.
Adjust batter thickness if needed. Different brands of Greek yogurt vary in thickness, so you can add a splash of milk if the batter feels too thick.
Don't stack warm waffles. Stacking while warm can trap steam and soften them instead of keeping edges crisp.
Freeze extras for meal prep breakfast. They reheat well in the toaster or toaster oven.