Add the eggs, Greek yogurt, protein powder, milk, maple syrup, vanilla extract, baking powder, cinnamon, salt, and avocado oil.

Blend until a smooth, thick batter forms with no visible lumps.

Allow the batter to rest for a few minutes so it slightly thickens.

Preheat the waffle maker according to the manufacturer's instructions.

Lightly grease the waffle plates if needed.

Pour the batter into the hot waffle maker, spreading it evenly without overfilling.

Close the lid and cook until the waffles are golden brown with crisp edges and a light toasted aroma.

Transfer the cooked waffles to a cooling rack to maintain their crisp texture.

Repeat with the remaining batter.

Serve warm with your favorite toppings and enjoy immediately.