Seared Ahi Tuna with Sesame Seeds | CookOS

Seared Ahi Tuna

Name: Seared Ahi Tuna with Sesame Seeds
Prep time: 10 min
Cook time: 3 min
Total time: 13 min
Yield: 4 servings
Cuisine: Japanese-inspired
Ingredients: 4 (6 oz) ahi tuna steaks; 2 tbsp soy sauce, for coating; 1/4 cup black sesame seeds; 1/4 cup white sesame seeds; 1 tbsp olive oil; 1/2 cup soy sauce; 1/4 cup rice vinegar; 1 tbsp grated ginger; 1/2 lime, juiced; 2 tbsp honey; cooked white rice, for serving; 1 green onion, chopped, for garnish; 1/2 avocado, sliced, for serving

This seared ahi tuna features tuna steaks coated in a crust of black and white sesame seeds, seared for one minute per side to keep the interior rare, and paired with a tangy soy-rice vinegar-ginger dipping sauce. The entire dish comes together in under 15 minutes.

🌍Japanese-inspired 🏷️Seared tuna 🏷️Ahi tuna 🏷️Tuna steak 🏷️Sesame crusted tuna Quick dinner

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Total

13 min

Servings

Difficulty

Easy

Est. Cost

$25–$41

Recipe Source

View original recipe

From TikTok · by jackiehartlaub

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Ingredients

4 (6 oz) ahi tuna steaks
2 tbsp soy sauce, for coating
1/4 cup black sesame seeds
1/4 cup white sesame seeds
1 tbsp olive oil
1/2 cup soy sauce
1/4 cup rice vinegar
1 tbsp grated ginger
1/2 lime, juiced
2 tbsp honey
cooked white rice, for servingoptional
1 green onion, chopped, for garnishoptional
1/2 avocado, sliced, for servingoptional

13 Ingredients

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Instructions

1
Lightly coat the ahi tuna steaks with soy sauce.
2
In a shallow bowl or plate, combine equal parts black and white sesame seeds and mix well.
3
Press each side of the soy-coated tuna steaks into the sesame seed mixture, ensuring an even and thick crust. Set aside.
4
To make the dipping sauce, combine 1/2 cup soy sauce, rice vinegar, grated ginger, lime juice, and honey in a bowl. Whisk until fully combined.
5
Add olive oil to a large skillet and heat over high heat until the pan is very hot and shimmering.
6
Carefully place the sesame-crusted tuna steaks in the hot pan. Sear for 1 minute on each side for a rare center, or until the sesame seeds are nicely toasted.
7
Remove the tuna from the pan and place it on a cutting board. Slice the tuna into thick pieces against the grain.
8
Serve the sliced ahi tuna over a bed of rice. Garnish with chopped green onions and sliced avocado, and drizzle with the prepared dipping sauce.

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Tips & Notes

Pro tips

Pat tuna steaks completely dry before coating in sesame seeds to ensure proper crust formation and prevent steaming.
Use a very hot skillet or cast-iron pan and a thin coating of olive oil; the high heat is essential for achieving a golden crust in just 1 minute per side.
Do not move the tuna once it hits the pan—let it sear undisturbed to develop a crust. Flip only once.
Let seared tuna rest for 2 minutes before serving to allow carryover cooking and let the crust set.

Substitutions

Black and white sesame seeds → panko breadcrumbs (texture will be lighter, less nutty)
Rice vinegar → white vinegar or unseasoned rice wine vinegar (adjust to taste)
Honey → maple syrup or agave (maintains sweetness and gloss in the sauce)
Olive oil for searing → avocado oil or neutral oil with higher smoke point (flavor unchanged)

Storage & make-ahead

Seared tuna is best served immediately. Leftovers keep refrigerated for up to 2 days; reheat gently in a low oven or eat cold in salads. Dipping sauce stores separately for up to 3 days.

Equipment

cast-iron skillet or heavy-bottomed stainless steel pan · meat thermometer (optional)

Common Questions

How do I know when ahi tuna is done searing?

Sear for exactly 1 minute per side over high heat. The exterior should be golden and crispy while the center remains rare and cool. Use a meat thermometer if you prefer: 125°F is rare, 135°F is medium-rare.

Can I use a different type of tuna?

Ahi tuna (yellowfin) is ideal for searing because of its firm texture and high-quality flavor. Bigeye tuna and swordfish steaks work as alternatives, though flavor and texture will differ.

Do I need to toast the sesame seeds first?

Toasting is optional but recommended for deeper flavor. Toast black and white sesame seeds separately in a dry skillet over medium heat for 2–3 minutes, then mix and cool before coating the tuna.

Can I make the dipping sauce ahead of time?

Yes. The dipping sauce keeps refrigerated for up to 3 days. Mix all sauce ingredients (soy sauce, rice vinegar, ginger, lime juice, honey) and store in an airtight container. Stir well before serving.

What if I prefer my tuna cooked through instead of rare?

Increase heat slightly and sear for 2–3 minutes per side for medium doneness. Note that longer cooking may dry out the tuna; avoid cooking past medium-rare if possible.