Dinner

Spicy Tuna Sushi Rolls

By Kkuek Culinary Team | Prep & Cook Time: 45 Mins

Making sushi at home might seem intimidating, but with the right ingredients and a little practice, it becomes an incredibly rewarding culinary art. These Spicy Tuna Rolls rival those from your favorite high-end sushi bar. The secret lies in perfectly seasoned short-grain sushi rice—which must be glossy, slightly sticky, and balanced with rice vinegar—and high-quality, sushi-grade Ahi tuna. The spicy mayo adds a creamy, fiery kick that complements the clean taste of the fish, while crisp cucumber matchsticks provide essential textural contrast. Master this roll, and your home dinners will never be the same.

The Ingredients

2 cups premium short-grain sushi rice
2.5 cups cold water
1/3 cup unseasoned rice vinegar
2 tbsp granulated sugar
1 tsp fine sea salt
8 oz extremely fresh, sushi-grade Ahi tuna
3 tbsp mayonnaise (Japanese Kewpie mayo is highly recommended)
1.5 tbsp Sriracha hot sauce (adjust to heat preference)
1/2 tsp toasted sesame oil
1/2 English cucumber, seeds removed and cut into thin matchsticks
4 sheets toasted Nori (seaweed)
Toasted sesame seeds (black or white)
Soy sauce, wasabi paste, and pickled ginger for serving

Step-by-Step Instructions

Wash the rice: Place the sushi rice in a fine-mesh strainer and rinse it under cold running water, swirling it with your hands, until the water runs completely clear. This removes excess starch and prevents gummy rice. Drain well.
Cook the rice: Combine the rinsed rice and cold water in a rice cooker or a heavy-bottomed pot. Cook according to your rice cooker instructions, or bring the pot to a boil, reduce heat to the lowest setting, cover, and simmer for 15 minutes. Remove from heat and let sit covered for 10 minutes.
Prepare the sushi vinegar (Sushi-zu): While the rice cooks, combine the rice vinegar, sugar, and salt in a small saucepan over low heat. Stir until the sugar and salt are completely dissolved. Do not boil.
Season the rice: Transfer the hot, cooked rice to a large, wide wooden or glass bowl (avoid metal). Pour the vinegar mixture evenly over the rice. Use a wooden spatula to gently 'slice' and fold the rice to mix in the vinegar without smashing the grains. Fan the rice while mixing to cool it quickly and give it a glossy shine. Cover with a damp towel to keep it from drying out.
Prepare the spicy tuna: Using a very sharp knife, finely dice the sushi-grade Ahi tuna. In a bowl, mix the diced tuna with the mayonnaise, Sriracha, and toasted sesame oil until well combined. Keep chilled until ready to use.
Set up your rolling station: Wrap your bamboo sushi rolling mat completely in plastic wrap (this prevents sticking and makes cleanup easy). Have a small bowl of cold water nearby to dip your hands in.
Lay out the rice: Place a half-sheet of nori shiny-side down on the bamboo mat. Wet your hands slightly in the water bowl to prevent sticking. Grab a handful of seasoned rice (about 1/2 cup) and gently spread it evenly across the nori, leaving a 1/2-inch bare border at the top edge.
Add the fillings: Spoon a generous line of the spicy tuna mixture horizontally across the center of the rice. Lay a few cucumber matchsticks right next to the tuna.
Roll it up: Place your thumbs under the bamboo mat and lift the edge closest to you up and over the filling. Press down firmly to compact the roll, enclosing the filling. Lift the edge of the mat and roll forward to seal it against the bare nori border.
Cut and serve: Dip a very sharp, long knife into the water bowl. Slice the roll exactly in half, then line up the halves and slice into 6 or 8 equal pieces, wiping and wetting the knife blade between every single cut. Sprinkle with sesame seeds and serve with soy sauce, wasabi, and pickled ginger.