Optional step for an extra crispy crust: Add a teaspoon of cheese to the mini waffle maker for about 30 seconds before adding the recipe mixture. This will allow the cheese to get crispy when the tuna chaffle is done cooking. I prefer this method!
Add 1/2 the mixture to the waffle maker and cook it for a minimum of 4 minutes.
Remove it and cook the last tuna chaffle for another 4 minutes.
Notes
This recipe makes two tuna chaffles. Double the recipe if you are using a full-size waffle maker.