Crispy Rice with Spicy Tuna Recipe
Introduction
Crispy Rice with Spicy Tuna is a delightful fusion dish combining crunchy, golden rice cakes with a creamy and spicy tuna topping. Perfect as an appetizer or a fun snack, it balances texture and flavor with every bite.

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 cane sugar
- ⅓ cup mirin
- 10–12 oz ahi tuna
- 3 tbsp Japanese mayo
- 1 tbsp sriracha
- 2 tbsp chives + more for topping
- ½ tsp sesame oil
- 1 tsp tamari
- ½ tsp sugar
- Chopped chives (for topping)
- 1 to 2 Serranos
- 1 avocado
Instructions
- Step 1: Wash the sushi rice well and cook it in a rice cooker with the water, kombu strip, and a pinch of salt until done.
- Step 2: In a small bowl, combine the sugar and rice vinegar. Mix this into the cooked rice along with the potato starch until well combined.
- Step 3: Line a baking sheet with plastic wrap and evenly press the rice into it to about ¼–½ inch thickness. Cover with plastic wrap, place another baking sheet on top with cans for weight, and refrigerate for 4–8 hours. Then freeze for 30 minutes.
- Step 4: Remove the rice from the freezer and cut into 2-inch rounds or squares, yielding about 12–15 pieces.
- Step 5: Heat about ½ inch of avocado oil in a pan. Fry the rice pieces until golden and crispy on both sides, about 8–10 minutes. Drain on paper towels.
- Step 6: For the eel sauce, combine mirin, tamari, and cane sugar in a saucepan and bring to a boil. Simmer for 5–7 minutes until the sauce coats the back of a spoon. Let cool.
- Step 7: Finely chop the ahi tuna until almost paste-like. In a bowl, mix the tuna with Japanese mayo, sriracha, chopped chives, sesame oil, tamari, and sugar.
- Step 8: Slice the Serranos and cut the avocado into small triangles to use as toppings.
- Step 9: Pipe or spoon the spicy tuna mixture onto each crispy rice piece. Top with more chopped chives, an avocado triangle, a slice of Serrano, and drizzle with the eel sauce.
Tips & Variations
- Use short grain sushi rice for the best sticky texture that holds together well when frying.
- Substitute avocado oil with neutral oils like vegetable or canola oil if unavailable.
- Adjust sriracha quantity in the spicy tuna mix to control heat level.
- For a milder option, remove Serrano seeds or use milder peppers.
- Try topping with thinly sliced scallions or sesame seeds for extra flavor and crunch.
Storage
Store any leftover crispy rice pieces separately in an airtight container in the refrigerator for up to 2 days. Reheat in a hot pan to restore their crispness before adding the spicy tuna topping. The spicy tuna mixture should be kept chilled and consumed within 24 hours for the best freshness and safety.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use regular soy sauce instead of tamari?
Yes, regular soy sauce can be used as a substitute, but tamari is gluten-free and has a richer, less salty flavor which complements this dish nicely.
How can I make the rice cake crispier?
Make sure the rice is well-packed and chilled before frying. Use enough oil and fry over medium heat until both sides are golden brown. Avoid overcrowding the pan to maintain oil temperature and crispiness.
Print
Crispy Rice with Spicy Tuna Recipe
- Total Time: 7 hours 40 minutes
- Yield: 12–15 servings 1x
Description
Crispy Rice with Spicy Tuna is a delectable Japanese-inspired appetizer featuring perfectly cooked sushi rice formed into crispy fried cakes topped with a creamy, spicy ahi tuna mixture, fresh avocado, and a tangy homemade eel sauce. This dish balances textures and flavors for an impressive and delicious bite-sized treat.
Ingredients
For the Crispy Rice
- 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)
For the Eel Sauce
- ⅓ cup tamari
- ⅓ cup cane sugar
- ⅓ cup mirin
For the Spicy Tuna
- 10–12 oz ahi tuna, finely chopped
- 3 tbsp Japanese mayo
- 1 tbsp sriracha
- 2 tbsp chives, finely chopped + extra for topping
- ½ tsp sesame oil
- 1 tsp tamari
- ½ tsp sugar
For Topping
- 1 to 2 Serrano peppers, sliced
- 1 avocado, cut into small triangles
Instructions
- Prepare the Crispy Rice Base: Wash the sushi rice thoroughly and cook it in a rice cooker with 1 ⅔ cups water, a kombu strip (optional), and a pinch of salt until done.
- Mix Seasonings into Rice: In a small bowl, mix together the sugar and rice vinegar, then combine this mixture along with potato starch into the cooked rice for flavor and binding.
- Form and Chill Rice: Spread the seasoned rice evenly into a baking sheet lined with plastic wrap, pressing it tightly to about ¼-½ inch thickness. Cover with plastic wrap, place a weighted baking sheet on top, and refrigerate for 4-8 hours, then freeze for 30 minutes to firm up.
- Cut and Freeze Rice Pieces: Remove the rice slab from the refrigerator and cut into rounds or squares about 2 inches in size, yielding 12-15 pieces. Place these pieces in the freezer for about 2 hours until firm but not frozen solid.
- Fry the Rice: Heat about ½ inch of avocado oil in a pan. Fry the frozen rice pieces for approximately 8-10 minutes until golden and crisp on both sides. Remove and drain on paper towels.
- Make the Eel Sauce: In a small saucepan, combine mirin, tamari, and cane sugar. Bring to a boil then simmer for 5-7 minutes until the sauce thickly coats the back of a spoon. Let cool.
- Prepare the Spicy Tuna Mixture: Finely chop the ahi tuna into almost a paste-like texture. Mix the tuna with Japanese mayo, sriracha, chopped chives, sesame oil, tamari, and sugar in a medium bowl until well combined.
- Prepare Toppings: Slice Serrano peppers and cut the avocado into small triangular pieces suitable for topping each rice cake.
- Assemble the Bites: Pipe the spicy tuna mixture onto each crispy rice piece. Top with additional chives, an avocado triangle, Serrano slice, and drizzle generously with the cooled eel sauce.
Notes
- Use short grain sushi rice for the best texture and stickiness.
- Chilling and freezing the rice helps it hold its shape during frying.
- Adjust the amount of sriracha in the tuna mixture to your preferred spice level.
- The eel sauce can be made ahead and refrigerated; just warm slightly before serving.
- Be careful when frying; maintain medium heat to avoid burning the rice while ensuring crispiness.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Category: Appetizer
- Method: Frying
- Cuisine: Japanese
Keywords: Crispy rice, Spicy tuna, Sushi appetizer, Japanese recipe, Fried rice cakes

