1Mix the oats, protein powder, egg, egg whites, cinnamon, vanilla, and salt until well combined.
2Heat the waffle iron to medium-high heat. If needed, spray the iron with oil to prevent sticking.
3Cook the waffle until crispy.
4Prepare the blueberry syrup by microwaving the blueberries for 30-60 seconds until they burst, then mash with a fork. Alternatively, cook them in a pan over medium-high heat with 1-2 tablespoons of liquid until they reach a jammy consistency.
5Top the cooked waffle with blueberry syrup and vanilla yogurt.