Appetizers · Part 2 of 3: Instructions
Crispy Rice Spicy Tuna Bites: Crunchy Appetizer Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 4
Before you start
Start by cooking and chilling the sushi rice – it's best to do this a few hours ahead or even the night before. You'll also want to dice the ahi tuna and keep it refrigerated until ready to mix. Have all your ingredients measured and within reach: the spicy mayo, soy sauce, sesame oil, and sliced jalapeño.
Set up a large skillet and have the neutral oil ready. A kitchen thermometer is helpful to ensure the oil reaches the right temperature. Finally, line a plate with paper towels for draining the fried rice blocks.
Ingredients at a glance (8)
- 2 cups cooked sushi rice, chilled
- 200 g sushi-grade ahi tuna, diced
- 30 ml spicy mayo
- 10 ml soy sauce
- 1 tsp sesame oil
- 1/2 cup neutral oil (such as canola or vegetable)
- 1 jalapeño, thinly sliced
- Sriracha aioli, for drizzling, to taste
Instructions
Press and Chill the Rice
- Prepare the Rice and TunaPress the chilled sushi rice firmly into 2-inch square blocks, about 1 inch thick. Use your hands or a small mold to shape them. In a mixing bowl, combine the diced ahi tuna with spicy mayo, soy sauce, and sesame oil. Toss gently until the tuna is evenly coated.Look for The rice blocks hold their shape when pressed firmly. The tuna is glossy and evenly coated with the sauce.Tip Wet your hands with water to prevent the rice from sticking when pressing.
- Chill the Rice BlocksPlace the pressed rice blocks in the refrigerator for at least 10 minutes to firm them up. This step helps them hold together during frying.Look for The rice blocks are cold and firm to the touch.Tip Chilling is key – it prevents the rice from falling apart in the hot oil.
At the end of this phase, you should have neat 2-inch square rice blocks that are cold and firm. The tuna is mixed and glossy, with each cube coated in the spicy mayo mixture.
The aroma of sesame oil and soy is inviting. The rice blocks should hold their shape when picked up – if they crumble, press them again and chill longer.
Fry to Golden Perfection
- Heat the OilIn a large skillet, heat the neutral oil over medium-high heat until it reaches 375°F (190°C). Use a kitchen thermometer to check the temperature.Look for The oil shimmers and a small piece of rice sizzles immediately when dropped in.Tip Maintain the temperature – too low and the rice absorbs oil; too high and it burns.
- Fry the Rice BlocksCarefully place the chilled rice blocks into the hot oil. Shallow-fry for 3 minutes per side until golden brown and crispy. Use tongs to flip them gently. Cook until the internal temperature of the fish reaches 145°F (63°C) if serving warm, but since the tuna is served raw, ensure the rice is fully cooked and hot.Look for The rice turns a deep golden brown and develops a glass-like crust. The sizzling sound is crisp and even.Safe temperature 145°F (63°C) internal temperature (fish)Tip Do not overcrowd the pan – fry in batches if needed.
- Drain the Rice BlocksRemove the fried rice blocks from the oil and place them on a paper towel-lined plate to drain excess oil. Let them cool slightly for 1-2 minutes.Look for The surface is crisp and dry, with no excess oil pooling.Tip Letting them rest helps the crust stay crunchy.
The oil is shimmering at 375°F (190°C). The rice blocks sizzle as they hit the pan, and after 3 minutes per side, they turn a deep golden brown. The crust is hard and glass-like, and the kitchen smells of toasted rice. The blocks are crisp and dry, with no excess oil. They should feel firm but yield slightly when pressed.
Top and Serve Immediately
- Top with Spicy TunaSpoon a generous amount of the spicy tuna mixture onto each crispy rice block. Spread it evenly to cover the top.Look for The tuna is ruby-red and glossy, piled neatly on the golden rice.Tip Use a spoon or small offset spatula for neat plating.
- Garnish and ServePlace a thin slice of jalapeño on top of each tuna-topped rice cube. Drizzle with sriracha aioli for a final touch. Serve immediately while the rice is still crispy.Look for The jalapeño adds a pop of green, and the aioli ribbons attractively over the top.Tip Serve right away – the rice loses its crunch if left to sit.
The crispy rice blocks are topped with a generous spoonful of spicy tuna, a jalapeño slice, and a ribbon of sriracha aioli. The colors are vibrant – golden, ruby red, green, and creamy white. The aroma is savory with a hint of heat. Serve right away to enjoy the crunch at its peak.
Common mistakes
One common mistake is using warm rice – it will fall apart when frying. Always chill the rice thoroughly before pressing. Another is overcrowding the skillet, which lowers the oil temperature and results in greasy, soggy rice.
Fry in batches if needed. Also, don't skip the chilling step after pressing – it helps the blocks hold together. Finally, be careful not to overmix the tuna, as it can become mushy. Gently fold the ingredients together to keep the chunks intact.
How to tell it’s done
The rice blocks are done when they are golden brown and crispy on all sides, with a glass-like crust that crackles when pressed. The internal temperature of the fish, if you choose to cook it through, should reach 145°F (63°C).
For this recipe, the tuna is served raw, so ensure the rice is fully cooked and hot. The rice should be tender on the inside, not hard or undercooked. The spicy tuna topping should be well-chilled and creamy.
- Fish: 145°F (63°C) in the thickest part
Up next · Part 3 of 3
4 variations · storage & make-ahead · 5 answers · printable card
Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)