Preheat your mini waffle maker until fully heated.
Crack the egg into a small bowl and whisk until smooth.
Stir in the shredded cheese and a pinch of salt until evenly combined.
Pour half of the mixture onto the hot waffle maker and close the lid.
Cook for 2 to 3 minutes, until the chaffle is set and lightly golden.
Repeat with the remaining batter to make the second chaffle.
Transfer the chaffles to a wire rack and let them rest for 2 to 3 minutes before serving.
Notes
For a crispier chaffle, sprinkle a small amount of cheese directly onto the waffle maker before adding the batter, then add a little more cheese on top before closing the lid.
For a thicker, more dense texture, stir 2 tablespoons of almond flour into the batter before cooking.