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It’s hard to think of a simpler, fresher and more bursting-with-flavor dish than Grilled Tuna Steaks served with an umami-loaded sesame soy dipping sauce! I grill ahi tuna over high heat, creating a rare center and beautiful grill marks, just like you see in upscale restaurants. As home cooks, we may feel a little intimidated to serve fish rare, assuming that only restaurant chefs can master this technique, but it’s surprisingly easy and fast.

A plate of seared tuna slices garnished with chopped green onions and sesame seeds, accompanied by a small bowl of soy-based dipping sauce. Chopsticks rest on the edge of the plate. The plate is set on a blue-gray placemat.
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The sesame soy dipping sauce with pleasantly spicy fresh ginger doubles as a marinade, saving you a few steps. All you need are a few simple ingredients and a couple of high-quality tuna steaks, ideally yellowfin tuna (often marketed as ahi tuna). However, this recipe works equally well with other types of tuna, such as: bluefin, bonito/skipjack, bigeye or albacore.

Ingredients to make Grilled Tuna Steaks

Grilled Tuna Steak Ingredients on a white marble board
  • Fresh Tuna Steaks: Yellowfin/ahi, bluefin, bigeye, skipjack or albacore work, although albacore is a little drier. Frozen tuna can be as high-quality as fresh if you can’t easily get fresh.
  • Soy Sauce: Regular or low sodium soy sauce. Here is my favorite brand!
  • Unseasoned Rice Vinegar: Be sure to use unseasoned rice vinegar, not the seasoned version that contains added sugar and salt.
  • Honey: Your favorite variety.
  • Green Onion: Look for a smooth, firm, bright green onion.
  • Toasted Sesame Oil: While plain sesame oil has very little color or flavor, toasted sesame oil has a deep amber color and a nutty, toasty aroma and flavor.
  • Fresh Ginger: Look for a plump fresh ginger hand with smooth, shiny skin.
  • Garlic: Fresh garlic bulbs should be plump and firm with smooth, silvery skin.
  • Olive Oil: Use whatever variety you have on hand – extra virgin olive oil isn’t essential here.
  • Kosher Salt and Freshly Ground Black Pepper

Is your tuna steak ok to serve rare or raw?

You might be concerned about serving raw or rare tuna at home, not knowing if it’s fresh enough. It’s an important concern and one that isn’t regulated by the FDA, despite grocery store signage claiming ‘sushi grade’ or ‘sashimi grade’ (here is a great article if you want to read about this in-depth). However, you can find fresh, high-quality fish to serve at home, and it’s easier than you might think. It’s key to buy from a reputable fishmonger and here are some things to look for:

  • Deeply red or pink tuna steaks (not brown) that are moist, shiny, and nearly translucent, particularly if you plan to serve it rare or raw (as in this Tuna Tartare or Ahi Tuna Salad). Avoid tuna with discoloration, or that looks soft and mushy.
  • Tuna steaks should smell of fresh sea-air; avoid those with a fishy odor.
  • If you don’t live near a coast where fresh fish is readily available, frozen tuna can work just as well, provided the tuna was frozen immediately in an industrial flash freezer onboard the fishing boat.
A white plate features neatly sliced pieces of seared tuna, garnished with chopped scallions. A small bowl of soy-based dipping sauce sits beside the tuna, accompanied by a pair of wooden chopsticks resting on the edge of the plate.

5 Recipe Tips

  1. Ask questions: Don’t hesitate to ask your fishmonger questions about the tuna — was it sustainably caught, from where, how fresh it is, etc. Ideally, your fishmonger will cut steaks to order from the whole loin.
  2. Check the color: Look for deep red tuna, but make sure it hasn’t been treated with carbon monoxide, a practice some processors use to achieve a dark red color.
  3. Grill hot and fast: Grill steaks over high heat to keep the center rare while achieving beautiful sear marks.
  4. Adjust for doneness: If you prefer your tuna steaks well done, just grill them for an additional 2 to 3 minutes per side.
  5. Marinate briefly: You can skip the marinating if you’re short on time, but if you do marinate, only do so for 20-30 minutes. Longer will ultimately “cook” the fish, as in ceviche.

This restaurant-quality Grilled Tuna Steaks recipe works for both busy weeknights since it’s so easy and requires minimal prep work, but is impressive enough to serve guests! If you want to serve a simple Asian-themed meal, Grilled Bok Choy or Chinese Cucumber Salad and steamed rice are the perfect accompaniments.

How to Grill Tuna Steaks

Step 1: Whisk together dipping sauce ingredients (soy sauce, rice vinegar, honey, sesame oil, ginger, and garlic).

tuna steak marinade

Step 2: Preheat grill to high. Rinse and dry tuna steaks then rub all sides with oil and season with salt and pepper.

rinsing tuna steak and rubbing with oil
Seasoned Tuna Steak

Step 3: Grill tuna steaks until seared on the outside and rare in the middle, about 2 minutes per side. Transfer to cutting board and thinly slice tuna across the grain.

grilling tuna steak
grilled tuna steaks served

Grilled Tuna Steaks

5 from 20 votes
Prep: 10 minutes
Cook: 4 minutes
Total: 14 minutes
Course: Main Course
Cuisine: Asian
Calories: 272
Servings: 4 people
This grilled tuna steak recipe is all about the quality of your fish. Be sure to choose it with care.

Video

Ingredients  

  • 3 tablespoons soy sauce
  • 1 tablespoon unseasoned rice vinegar
  • 1 teaspoon honey
  • 1 tablespoon toasted sesame oil
  • 2 teaspoons finely grated fresh ginger
  • 1 teaspoon minced fresh garlic
  • 2 ahi tuna steaks about 1 pound
  • 2 tablespoon olive oil
  • kosher salt
  • freshly ground black pepper
  • sesame seeds to taste
  • thinly sliced green onion to taste

Instructions 

  • Make dipping sauce. In a medium bowl whisk together soy sauce, rice vinegar, and honey until honey dissolves. Whisk in sesame oil, ginger, and garlic until emulsified. Leave at room temperature or refrigerate if desired. (recipe note #1)
  • Preheat a gas grill (or charcoal grill) to high. (recipe note #2)
  • Rinse tuna steaks and pat dry with paper towels. Rub all sides of tuna with olive oil and season with salt and pepper. Grill tuna 2 minutes per side, until seared on the outside and rare in the center. (If you prefer a cooked center, cook an additional ~2 minutes per side.) Transfer tuna to cutting board. With a thin, sharp knife, thinly slice tuna across the grain (1/4 to 1/2-inch thick slices). Sprinkle with sesame seeds and sliced green onion. Serve with dipping sauce.

Notes

  1. If you prefer marinated fish, double the dipping sauce recipe and marinate the rinsed and dried tuna steaks for 20 to 30 minutes in 1/2 of the sauce before grilling. Serve the remaining sauce alongside for dipping.
  2. As an optional step to prevent sticking, brush grill grates with a high heat neutral or vegetable oil just before you add steaks to the grill.
  3. If desired, divide dipping sauce among 4 small bowls for serving.

Nutrition

Calories: 272kcal | Carbohydrates: 3g | Protein: 28g | Fat: 16g | Saturated Fat: 3g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 8g | Cholesterol: 43mg | Sodium: 799mg | Potassium: 323mg | Fiber: 1g | Sugar: 2g | Vitamin A: 2476IU | Vitamin C: 1mg | Calcium: 14mg | Iron: 2mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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53 Comments

  1. Mary Beth says:

    5 stars
    I cooked my tuna differently, but the sauce was dynamite! I used a combination of coconut aminos and low sodium soy, and I used Mike’s hot honey.

    1. Marissa Stevens says:

      Hi Mary Beth! So glad you enjoyed the sauce. Love the idea of using hot honey in it!

  2. Andrea says:

    5 stars
    This recipe is so Easy and so delicious!!

    1. Marissa Stevens says:

      Thank you, Andrea! So glad you’re enjoying it.