Preheat your mini waffle maker to medium heat for even cooking.

In a small mixing bowl, crack one egg and whip it until fully combined and slightly frothy.

Add well-drained tuna to the whipped egg, along with shredded cheese and salt. Mix until fully incorporated.

Sprinkle about a teaspoon of extra shredded cheese onto the preheated waffle maker for crunch.

Spoon half of the tuna mixture onto the waffle maker, spread evenly, and cook for about 4 minutes.

Carefully remove the cooked chaffle with a fork or tongs and repeat with the remaining mixture.

Let the chaffles cool for a minute before serving to enhance their crispy texture.