Ahi Tuna Recipe (Restaurant-Style At Home)
This easy, restaurant-worthy ahi tuna recipe gives you buttery, tender tuna with a gorgeous seared crust, ready in minutes for a healthy, elegant dinner at home.
Ingredients
- 2 ahi tuna steaks about 6–8 ounces each, 1 to 1½ inches thick; sushi- or sashimi-grade preferred
- 1/2 teaspoon kosher salt use slightly less if using table salt
- 1/4 teaspoon black pepper freshly ground
- 1-2 tablespoons avocado oil or neutral high-heat oil such as avocado, grapeseed, canola, or refined peanut oil, for searing
- 3 tablespoons low-sodium soy sauce or tamari / coconut aminos for gluten-free
- 1 tablespoon sesame oil toasted if possible, for more flavor
- 1 tablespoon fresh lime juice or lemon juice; freshly squeezed preferred
- 1 tablespoon rice vinegar unseasoned
- 1-2 teaspoons honey or maple syrup to taste; start with 1 teaspoon if you prefer less sweetness
- 2 cloves garlic minced
- 1 teaspoon fresh ginger grated; or 1/4 teaspoon ground ginger
- 1/2 teaspoon crushed red pepper flakes optional, for gentle heat
- 2 tablespoons white sesame seeds optional, for sesame crust
- 1 tablespoon black sesame seeds optional, for color in sesame crust
- 1 teaspoon coarse sea salt optional, for sesame crust; adjust to taste
- 1 tablespoon low-sodium soy sauce for serving sauce (optional)
- 1 teaspoon sesame oil for serving sauce (optional)
- 1/2 teaspoon honey for serving sauce (optional)
- lime juice squeeze, to taste, for serving sauce (optional)
- sesame seeds or sliced green onions for garnish (optional)
Instructions
- Pat the ahi tuna steaks very dry on all sides with paper towels. This helps the marinade cling and promotes a good sear instead of steaming.2 ahi tuna steaks
- In a small bowl, whisk together the soy sauce, sesame oil, lime juice, rice vinegar, honey or maple syrup, minced garlic, grated ginger, and red pepper flakes (if using). Taste and adjust with a bit more lime or honey if desired.3 tablespoons low-sodium soy sauce, 1 tablespoon sesame oil, 1 tablespoon fresh lime juice, 1 tablespoon rice vinegar, 1-2 teaspoons honey or maple syrup, 2 cloves garlic, 1 teaspoon fresh ginger, 1/2 teaspoon crushed red pepper flakes
- Place the tuna steaks in a shallow dish or zip-top bag. Pour the marinade over the fish, turning to coat evenly. Marinate in the refrigerator for 10–20 minutes, flipping once halfway through. Avoid marinating longer than 30 minutes so the acid doesn’t start to “cook” the tuna.2 ahi tuna steaks, 3 tablespoons low-sodium soy sauce, 1 tablespoon sesame oil, 1 tablespoon fresh lime juice, 1 tablespoon rice vinegar, 1-2 teaspoons honey or maple syrup, 2 cloves garlic, 1 teaspoon fresh ginger, 1/2 teaspoon crushed red pepper flakes
- If using a sesame crust, combine the white sesame seeds, black sesame seeds, and coarse sea salt in a shallow dish. Remove the tuna from the marinade and lightly pat off excess liquid so it’s coated but not dripping. Gently press each side of the tuna into the sesame mixture to coat.2 ahi tuna steaks, 2 tablespoons white sesame seeds, 1 tablespoon black sesame seeds, 1 teaspoon coarse sea salt
- Heat a large heavy skillet (cast iron or stainless steel) over medium-high to high heat. Add 1–2 tablespoons of avocado or other neutral high-heat oil. Let the oil get very hot until it shimmers and a drop of water sizzles on contact.1-2 tablespoons avocado oil or neutral high-heat oil
- Remove the tuna from the marinade, pat lightly if very wet, and season both sides with kosher salt and black pepper (use less salt if your soy sauce is very salty). Carefully lay the tuna steaks in the hot pan. Sear for 1–1½ minutes per side for rare (very pink/red center), 2 minutes per side for medium-rare (blush pink center), or 2½–3 minutes per side for medium (light pink center). Do not overcook; tuna cooks very quickly.2 ahi tuna steaks, 1/2 teaspoon kosher salt, 1/4 teaspoon black pepper, 1-2 tablespoons avocado oil or neutral high-heat oil
- Transfer the seared tuna steaks to a cutting board and let them rest for 2–3 minutes. Using a sharp knife, slice against the grain into about 1/2-inch-thick slices, cutting on a slight angle if you want a sushi-bar style presentation.2 ahi tuna steaks
- For extra flavor, whisk together 1 tablespoon soy sauce, 1 teaspoon sesame oil, 1/2 teaspoon honey, and a squeeze of lime juice. Adjust to taste.1 tablespoon low-sodium soy sauce, 1 teaspoon sesame oil, 1/2 teaspoon honey, lime juice
- Arrange the sliced tuna on plates. Drizzle with any unused, clean marinade or the quick serving sauce, and garnish with sesame seeds or sliced green onions if desired. Serve immediately over rice, quinoa, salad, or steamed vegetables.2 ahi tuna steaks, sesame seeds or sliced green onions
Notes
For best results, use sushi- or sashimi-grade ahi tuna and serve it rare to medium-rare; overcooking will dry it out. Thicker steaks (1–1½ inches) make it easier to achieve a deep sear with a pink center. Do not reuse marinade that has been in contact with raw fish unless you boil it for at least 1 minute for safety. Sesame seeds can burn quickly; if using a sesame crust, keep the heat at medium-high and watch closely. Leftover seared tuna is best enjoyed chilled or at room temperature within 2 days—serve over salads, grain bowls, or in lettuce wraps rather than reheating fully.
Nutrition
Calories: 350kcal
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