This Blackened Tuna Bites recipe comes together in about 15 minutes and rivals restaurant versions. It’s my favorite quick seafood dish when I want bold flavor with minimal fuss. Serve as an appetizer at your next gathering or as an entrée over mixed greens.
Recipe review
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Why I love blackened tuna bites
I enjoy simple seafood recipes with big flavor, and this one fits the bill. The idea came after a friend offered freshly caught tuna—so I picked up three pounds of bright, fresh fish and set out to make quick, delicious meals.
After a long day working for my personal chef clients, I often want a fast, satisfying dinner. This blackened tuna recipe is ready in 15 minutes and delivers plenty of flavor.
A quick homemade blackened spice blend coats bite-sized pieces of tuna, which are sautéed briefly in butter to form a flavorful crust while keeping the interior pink and tender. A cool, creamy sweet pickle dipping sauce balances the spice and adds brightness. It makes a fantastic appetizer or a light main course.
Ingredients for blackened tuna
- sour cream
- mayonnaise
- sweet pickle relish
- lemon juice
- fresh tuna
- paprika, garlic powder, onion powder, dried basil, dried oregano, dried thyme, kosher salt, cayenne pepper, black pepper
See the recipe section for exact quantities.
Substitutions and additions
- Choose very fresh tuna; ahi is my top pick. Frozen yellowfin works if fresh isn’t available.
- Make the blackened seasoning at home from pantry staples or use a good-quality store-bought blend for convenience.
What does blackened seasoning taste like?
Blackened seasoning is a mix of common spices—similar to Cajun or Creole blends but often milder. Paprika, garlic and onion powders, dried thyme, basil, oregano, kosher salt, cayenne, and black pepper combine for smoky, herbaceous flavor with a bit of heat.
It’s versatile: use it on steaks, pork, poultry, fish, shrimp, scallops, vegetables, and more. I often make a double or triple batch to keep on hand for quick meals.
How to make tuna bites
This recipe is fast and simple—ideal for a quick appetizer or dinner. I like to present the tuna on a platter with the sweet pickle sauce and lemon wedges. The combination is addictive.
Step 1: Make the dipping sauce by combining sour cream, mayonnaise, sweet pickle relish, chopped parsley, and lemon juice. Set aside while you prepare the tuna.
Step 2: Mix the blackened seasoning: paprika, garlic and onion powders, dried thyme, basil, oregano, kosher salt, cayenne, and black pepper. Adjust the cayenne to control heat.
Step 3: Cut the tuna into uniform 1-inch cubes and toss gently with the spice blend so each piece is well coated.
Step 4: Heat salted butter in a large sauté pan over medium heat. When the butter foams, add the tuna in a single layer and cook 30 seconds to 1 minute per side, depending on how rare you prefer the center. The goal is a seared exterior and a pink, tender interior. Finish with a squeeze of lemon and a sprinkle of chopped parsley.
Suggestions and tips
- Cut the tuna into equal-sized pieces so they cook consistently—about 1-inch cubes is ideal.
- Avoid overcooking; tuna becomes dry and chewy when cooked through. A brief sear keeps it moist and tender.
- Adjust the cayenne to taste or use your favorite pre-made blackened seasoning if you prefer.
What to pair with blackened tuna?
Blackened tuna bites are versatile—serve them as an appetizer with dipping sauces or build a meal around them.
Good dipping options include dill tzatziki, hummus with basil, creamy cilantro-lime dressing, or a zesty barbecue sauce. For a full meal, try:
- Parmesan buttered noodles
- Pork potstickers alongside the tuna
- A chopped romaine salad with cherry tomatoes, cucumber, and red onion topped with tuna
- Steamed broccoli, asparagus, or green beans with fluffy rice
- Cauliflower rice pilaf as a lighter base
One more thing
Did you try this recipe?
Please leave a comment and star rating below if you make it. Thanks — Amy
Recipe
Blackened Tuna Bites with Sweet Pickle Dipping Sauce
Ingredients
- for the sweet pickle dipping sauce
- ½ cup sour cream
- ½ cup mayonnaise
- 2 tablespoons sweet pickle relish
- 2 tablespoons chopped fresh parsley
- 2 teaspoons lemon juice
- for the tuna bites
- 1 ½ pounds fresh tuna cut in 1 inch cubes
- 1 tablespoon paprika
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1 teaspoon dried thyme
- 1 teaspoon dried basil
- 1 teaspoon dried oregano
- 1 teaspoon kosher salt
- ½ teaspoon cayenne pepper
- ½ teaspoon pepper
- 2 tablespoons salted butter
- lemon wedges for serving
Instructions
-
Make the dipping sauce. In a small bowl combine the sour cream, mayonnaise, sweet pickle relish, parsley and lemon juice. Set aside.
-
Prepare the tuna bites. In a medium bowl, combine paprika, garlic powder, onion powder, dried thyme, basil, oregano, kosher salt, cayenne, and pepper. Add the tuna and toss to coat each piece evenly.
-
Melt the butter in a large sauté pan over medium heat. When the butter foams, add the tuna in a single layer. Cook 30 seconds to 1 minute per side depending on desired doneness—less time for rare, a bit longer for more well done.
-
Transfer the tuna to a platter. Serve with the dipping sauce and lemon wedges.
Notes
- Use very fresh tuna; ahi is ideal, but frozen yellowfin works too.
- Cut tuna into uniform 1-inch cubes so they cook evenly.
- Don’t overcook—briefly sauté in a hot pan so the tuna is seared outside and pink inside.
- Adjust the cayenne to control heat, or use a favorite packaged blackened seasoning if preferred.
Nutrition
