In a mixing bowl, combine flour, cinnamon, nutmeg, sugar, baking powder, salt, and cornstarch. Tip: Make sure to whisk the dry ingredients well to avoid any clumps.
Whisk in the egg, milk, and oil until smooth. Tip: You want a lump-free batter for the best texture.
Gently fold in the shredded apples. Tip: This adds moisture and flavor to your waffle donuts.
Spray the preheated waffle iron with nonstick spray to ensure easy release.
Spoon the batter onto the waffle iron and cook for 3-5 minutes until golden brown and cooked through. Tip: Cooking time may vary depending on your waffle iron.
Transfer the waffle donuts to a wire rack to cool. Tip: Cooling on a rack prevents sogginess.
In a separate bowl, mix powdered sugar, milk, and vanilla extract to make the glaze. Tip: Adjust the milk for your desired glaze thickness.
Dip each waffle donut into the glaze, ensuring it's fully coated. Tip: A fork can help with this process for less mess.
Let excess glaze drip off, then return the waffle donuts to the wire rack. Tip: This will help set the glaze properly.
Optionally, sprinkle waffle donuts with cinnamon sugar for extra sweetness.
Allow the glaze to set before serving. Tip: Enjoy warm for the best flavor!
Notes
For extra indulgence, serve warm with a scoop of vanilla ice cream.