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Savory Tuna Melt Chaffle Recipe for a Protein-Rich Lunch - Easy, Crunchy, and Satisfying

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Prep Time 10 minutes
Cook Time 8 minutes
Total Time 18 minutes
Servings 2 servings

Ingredients
  

  • For the chaffles (makes 2): 1 large egg
  • 1/2 cup shredded mozzarella or mild cheddar
  • 1 tablespoon almond flour (optional, for extra structure)
  • 1/4 teaspoon baking powder (optional, for lightness)
  • Pinch of salt and black pepper
  • Nonstick spray or a light brush of oil
  • For the tuna filling: 1 (5-ounce) can tuna, drained well
  • 2 tablespoons mayonnaise or plain Greek yogurt
  • 1 teaspoon Dijon mustard
  • 1 tablespoon finely chopped red onion
  • 1 tablespoon finely chopped celery or dill pickle
  • 1 teaspoon lemon juice
  • 1/4 teaspoon garlic powder
  • Salt and black pepper to taste
  • For the melt: 1–2 slices sharp cheddar or provolone, or 1/4 cup shredded cheese
  • Optional: tomato slices, chopped jalapeño, fresh dill, or hot sauce

Instructions
 

  • Preheat your waffle maker. A mini waffle maker works best for chaffles. Let it heat fully so the batter crisps right away.
  • Mix the chaffle batter. In a small bowl, whisk the egg. Stir in the shredded cheese, almond flour, baking powder, salt, and pepper. The batter should be thick and chunky from the cheese.
  • Cook the first chaffle. Lightly grease the waffle plates. Spoon in half the batter, spread to the edges, and close. Cook for 3–4 minutes, until golden and well set. Avoid peeking early so it crisps.
  • Cook the second chaffle. Repeat with the remaining batter. Set both chaffles on a wire rack so steam can escape and they stay crisp.
  • Make the tuna salad. In a bowl, combine drained tuna, mayo or yogurt, Dijon, onion, celery or pickle, lemon juice, garlic powder, plus salt and pepper. Mix until creamy but not runny. Adjust seasoning to taste.
  • Assemble the melt. Place one chaffle back on the warm waffle maker or a skillet over low heat. Top with half the cheese, then the tuna salad, then the remaining cheese. Crown with the second chaffle.
  • Heat until melty. Close the waffle maker gently (don’t press hard) or cover the skillet. Warm 2–3 minutes, until the cheese melts and the outside is crisp. If using a skillet, flip once for even browning.
  • Serve hot. Slice in half and add optional tomato slices, a few dashes of hot sauce, or fresh herbs. Enjoy immediately for the best texture.