Crispy Rice with Spicy Tuna Recipe
Introduction
Crispy Rice with Spicy Tuna is a delightful sushi-inspired dish that combines crunchy, golden rice cakes with a creamy, spicy tuna topping. It’s perfect as an appetizer or a fun snack to impress friends and family. This recipe balances textures and flavors beautifully, making it a must-try for sushi lovers.

Ingredients
- 1 ¼ cup sushi rice (short grain)
- 1 ⅔ cup water
- 1 kombu strip (optional, but recommended)
- 1 pinch salt
- ½ tbsp sugar
- 2 tbsp rice vinegar
- 2 tbsp potato starch
- Avocado oil (for frying)
- ⅓ cup tamari
- ⅓ cup mirin
- ⅓ cup cane sugar
- 10-12 oz sushi-grade tuna
- 3 tbsp Japanese mayo
- 1 tbsp sriracha
- 2 tbsp chives (divided)
- ½ tsp sesame oil
- 1 tsp tamari (for spicy tuna)
- ½ tsp sugar (for spicy tuna)
- 1 to 2 Serranos (thinly sliced)
- 1 avocado (cut into small wedges)
Instructions
- Step 1: Rinse the sushi rice under cold water until the water runs mostly clear. Add the rice, water, kombu, and salt to a rice cooker or saucepan and cook until tender. Remove and discard the kombu.
- Step 2: In a small bowl, stir together the sugar and rice vinegar until dissolved. Mix this along with the potato starch into the hot rice until evenly combined.
- Step 3: Line a rimmed baking sheet with plastic wrap. Press the rice firmly into an even layer about ¼ to ½ inch thick. Cover with plastic wrap, place another baking sheet on top, and weight it lightly. Refrigerate for 4 to 8 hours, then transfer to the freezer for 30 minutes until the rice is firm but not frozen solid.
- Step 4: Make the eel sauce by combining tamari, mirin, and sugar in a small saucepan over medium heat. Bring to a boil, then reduce to a simmer and cook for 5 to 7 minutes until slightly thickened. Remove from heat and let cool.
- Step 5: Finely chop the tuna into very small pieces. In a bowl, mix the tuna with Japanese mayonnaise, sriracha, 2 tablespoons chopped chives, sesame oil, 1 teaspoon tamari, and ½ teaspoon sugar until well combined.
- Step 6: Remove the chilled rice slab and cut into 2-inch squares or rounds. Heat about ½ inch of avocado oil in a heavy-bottomed skillet over medium heat. Fry the rice pieces in batches for 8 to 10 minutes, turning once, until deeply golden on both sides. Avoid touching the rice once placed in the oil to prevent breaking. Transfer to a rack or paper towels to drain.
- Step 7: Assemble by spooning or piping the spicy tuna onto each crispy rice piece. Drizzle with eel sauce, then top with an avocado wedge, a slice of Serrano, and a sprinkle of chopped chives.
Tips & Variations
- For extra crunch, double-fry the rice squares by letting them cool after the first fry and then frying them again until crispier.
- Use tamari instead of soy sauce for a gluten-free option.
- Adjust the level of spiciness by adding more or less sriracha and Serrano slices according to your taste.
- Try substituting the tuna with spicy salmon or cooked shrimp for a different flavor.
Storage
Store leftover spicy tuna separately in an airtight container in the refrigerator for up to 24 hours. The crispy rice is best enjoyed fresh, as it loses its crunch when refrigerated. If needed, reheat the rice pieces in a skillet over medium heat for a few minutes to restore some crispiness before assembling.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use regular rice instead of sushi rice?
Sushi rice has a sticky, short-grain texture that helps the rice hold together when fried. Using regular long-grain rice may result in rice pieces that fall apart more easily. For best results, use sushi rice.
Is it necessary to use kombu in the rice cooking process?
Kombu adds a subtle umami flavor and enhances the rice’s taste, but it is optional. If you don’t have kombu, you can skip it without significantly impacting the dish.
Print
Crispy Rice with Spicy Tuna Recipe
- Total Time: 5 hours 10 minutes
- Yield: Approximately 12 pieces 1x
Description
A delicious recipe for Crispy Rice with Spicy Tuna featuring perfectly seasoned sushi rice fried to golden crispiness, topped with a flavorful blend of sushi-grade tuna, Japanese mayo, and sriracha, garnished with avocado, serrano peppers, and chives. Accompanied by a homemade sweet and savory eel sauce for an elevated sushi experience at home.
Ingredients
Rice and Seasoning
- 1 ¼ cup sushi rice (short grain)
- 1 ⅔ cup water
- 1 kombu strip (optional, but recommended)
- 1 pinch salt
- ½ tbsp sugar
- 2 tbsp rice vinegar
- 2 tbsp potato starch
- avocado oil (for frying)
Eel Sauce
- ⅓ cup tamari
- ⅓ cup mirin
- ⅓ cup cane sugar
Spicy Tuna Topping
- 10–12 oz sushi-grade tuna
- 3 tbsp Japanese mayo
- 1 tbsp sriracha
- 2 tbsp chives, chopped
- ½ tsp sesame oil
- 1 tsp tamari
- ½ tsp sugar
Garnishes
- 1 to 2 Serranos, thinly sliced
- 1 avocado, cut into small wedges
- Chopped chives
Instructions
- Prepare the Rice: Rinse the sushi rice under cold water until the water runs mostly clear to remove excess starch. Add the rice, water, kombu strip, and a pinch of salt to a rice cooker or saucepan and cook until tender. Once done, remove and discard the kombu.
- Season the Rice: In a small bowl, stir together sugar and rice vinegar until sugar dissolves. Mix this along with potato starch into the hot cooked rice, stirring gently until evenly combined for perfect seasoning and binding.
- Press and Chill: Line a rimmed baking sheet with plastic wrap. Press the rice firmly into an even layer about ¼ to ½ inch thick. Cover with plastic wrap, place another baking sheet on top, and weight it lightly to compress. Refrigerate for 4 to 8 hours to set, then transfer to the freezer for 30 minutes to firm up without freezing solid.
- Make the Eel Sauce: In a small saucepan over medium heat, combine tamari, mirin, and cane sugar. Bring to a boil, then reduce to a simmer and cook for 5 to 7 minutes until slightly thickened and able to coat the back of a spoon. Remove from heat and let cool.
- Prepare the Spicy Tuna: Finely chop the sushi-grade tuna into very small pieces. Transfer to a bowl and mix with Japanese mayonnaise, sriracha, chopped chives, sesame oil, tamari, and sugar until well combined.
- Cut and Fry the Rice: Remove the chilled, firmed rice slab from the freezer and cut into 2-inch squares or rounds. Heat about ½ inch of avocado oil in a heavy-bottomed skillet over medium heat. Fry the rice pieces in batches for 8 to 10 minutes, turning once, until deeply golden and crispy on both sides. Avoid moving rice pieces before flipping to prevent them from falling apart. Drain on a rack or paper towels.
- Assemble: Spoon or pipe the spicy tuna mixture onto the crispy rice pieces. Drizzle generously with cooled eel sauce, then top with an avocado wedge, serrano slice, and chopped chives. Serve immediately for best texture and flavor.
Notes
- Use sushi-grade tuna to ensure safety and the best flavor.
- Kombu is optional but adds umami depth to the rice cooking liquid.
- Potato starch helps give the rice its crispy texture when fried.
- Be careful when frying the rice to avoid breaking the pieces—do not flip too early.
- The rice slab can be prepared a day ahead and kept chilled until frying.
- Adjust the amount of sriracha according to your spice preference.
- Serve the crispy rice immediately after assembling to enjoy maximum crispiness.
- Prep Time: 20 minutes
- Cook Time: 20 minutes
- Category: Appetizer
- Method: Frying
- Cuisine: Japanese
Keywords: Crispy rice, Spicy tuna, Sushi, Japanese appetizer, Sushi rice, Fried rice cakes, Tuna sushi, Eel sauce, Avocado, Spicy mayo

