
This Tuna Melt Chaffle is the answer for anyone craving a savory protein-packed snack that comes together fast with minimal fuss. Perfect for lunch or a quick dinner, these chaffles have a crispy exterior and creamy cheesy center studded with flavorful tuna. Think of it as a comfort food upgrade that fits perfectly into low-carb or gluten-free needs.
My family devours these anytime I make them for weekend brunch and my kids love building a stack with their favorite toppings.
Ingredients
- Tuna in a pouch: Look for a 2.6 ounce packet and go for flavored options like jalapeno for extra zip. Choose wild caught if possible for the best flavor and nutrition.
- Mozzarella cheese: Shredded, about half a cup. High moisture cheese makes the chaffles melty and stretchy.
- Egg: Just one. Holds everything together and makes the chaffle fluffy. Opt for pasture raised if it is available.
- Salt: Just a pinch. Enhances all the other ingredients. Use flaked sea salt for pure flavor if you can.
Step-by-Step Instructions
- Preheat the Waffle Maker:
- Get your mini waffle maker hot first. A fully preheated iron helps the chaffle crisp and brown properly once it hits the plates.
- Prepare the Chaffle Mixture:
- Crack your egg into a small bowl and whip until smooth yellow. Beat until no streaks remain. Add tuna, mozzarella, and salt. Stir with a fork until everything looks evenly mixed and there are no dry spots.
- Create a Crispy Crust:
- If you want extra crunch, sprinkle a teaspoon of cheese right onto the preheated waffle plates. Let it cook alone for at least thirty seconds so the cheese gets bubbly and golden before you add the rest. This creates the signature lacy outer crust.
- Cook the First Chaffle:
- Spoon half the tuna-egg-cheese mix onto the waffle maker. Close the lid softly so you do not spill the edges. Cook for at least four minutes, waiting for the chaffle to set and get dark golden on top. The cheese should be crisp and easy to peel up with a spatula.
- Cook the Second Chaffle:
- Repeat with the rest of the mix and cook for another four minutes. When both are done, slide them out and let them rest on a rack to stay crisp. Serve while still hot for the best texture.

I always look forward to the melted cheese at the edges. It reminds me of the cheesy corners at family pizza nights when I was a kid.
Storage Tips
Chaffles keep well in the fridge for up to three days. Make sure to wrap them tightly or store in a sealed container. For crispiness, reheat them in a toaster oven or pop them back in the waffle maker for a minute straight from the fridge. If you want to freeze them, let them cool completely first, then place between sheets of parchment and freeze in a zip-top bag. They reheat beautifully and stay crispy.
Ingredient Substitutions
Swap the mozzarella for sharp cheddar or even pepper jack if you want more flavor kick. Any canned or packet tuna works, but you can swap in salmon for a twist. Use a flavored mayo instead of plain salt if you want extra flair like garlic or sriracha. My friend once mixed chopped dill pickles right into the batter and it was excellent.
Serving Suggestions
Stack the chaffles high and add toppings like sliced avocado, chopped green onions, or a drizzle of sriracha mayo. Serve with a simple side salad or cup of soup to make it a full meal. Try tucking them into lunchboxes; they do not go soggy the way some sandwiches can. For a brunch platter, cut them into triangles with extra cheese melted on top.
Cultural and Historical Context
Chaffles have become popular with keto and gluten-free cooks because they satisfy that bread craving with a fraction of the carbs. The tuna melt itself is classic American diner fare, known for its melty cheese and tangy filling. This recipe fuses those ideas for a modern fast comfort food that feels familiar yet a little bit new.

This simple tuna melt chaffle has saved me on countless busy days. You can make a double or even triple batch for family lunch and everyone can customize toppings. For me, the crispy cheese at the edge is the best part.
Frequently Asked Questions
- → How do I make the chaffle extra crispy?
For a crispier result, sprinkle a teaspoon of cheese onto the preheated waffle maker before adding the tuna mixture. Let it cook briefly first to form a crunchy base.
- → Can I use a different type of cheese?
Yes. Cheddar, pepper jack, or Swiss also melt well and give unique flavors to the chaffle. Adjust salt to taste if using salty cheese varieties.
- → Is it necessary to drain the tuna?
Use tuna without added water for the best texture. If using canned tuna with liquid, drain it thoroughly before mixing.
- → How do I know when the chaffle is cooked?
Wait until the chaffle is firm, golden, and lifts easily from the waffle maker—usually about 4 minutes per batch.
- → What extras can I add to the mixture?
Green onions, chopped pickles, or a dash of pepper can be added for flavor. Try flavored tunas like jalapeno for more zest.