Easy Spicy Tuna Recipe
Introduction
This easy spicy tuna recipe is a quick and flavorful way to enjoy fresh sashimi-grade tuna at home. With a creamy, spicy sauce and a touch of crunch from scallions, it’s perfect for a light meal or appetizer.

Ingredients
- 12 oz sashimi-grade tuna steaks (about 2–3 small tuna steaks)
- 2 tablespoons Kewpie Japanese mayonnaise
- 1 teaspoon sesame oil
- ½ teaspoon crispy chili oil
- 1 teaspoon sriracha
- ⅛ teaspoon flaky salt
- 1 tablespoon scallion, finely sliced
Instructions
- Step 1: Pat the tuna steaks dry with paper towels, then dice into small, even cubes to ensure a uniform texture.
- Step 2: In a medium bowl, combine the Kewpie Japanese mayonnaise, sesame oil, crispy chili oil, sriracha, and flaky salt, mixing well to create the spicy sauce.
- Step 3: Add the diced tuna to the sauce and gently fold together until the tuna is evenly coated without breaking the cubes.
- Step 4: Sprinkle the finely sliced scallions on top and serve immediately to enjoy the freshest flavor and texture.
Tips & Variations
- Use sashimi-grade tuna to ensure safety and the best taste; never use regular tuna steaks for raw preparations.
- If you prefer less heat, reduce the amount of sriracha or omit the crispy chili oil.
- Serve the spicy tuna over rice, in a sushi roll, or with crispy wonton chips for added texture.
Storage
Because this dish features raw tuna, it is best enjoyed immediately for freshness and food safety. If you must store leftovers, cover and refrigerate for up to 4 hours. Avoid storing for longer to prevent spoilage. Refrain from freezing the prepared spicy tuna, as it will alter the texture.
How to Serve
Serve this delicious recipe with your favorite sides.
FAQs
Can I use canned tuna instead of sashimi-grade tuna?
No, canned tuna is cooked and has a very different texture and flavor. For this recipe, fresh sashimi-grade tuna is essential to achieve the right taste and safety for raw consumption.
What can I substitute for Kewpie mayonnaise?
If you don’t have Kewpie mayo, you can use regular Japanese-style mayo or a high-quality mayonnaise, but Kewpie’s slightly sweet and umami-rich flavor is ideal for this dish.
PrintEasy Spicy Tuna Recipe
A quick and flavorful Easy Spicy Tuna recipe combining tender sashimi-grade tuna with a creamy, spicy Kewpie mayo-based sauce, perfect for a light meal or appetizer served in just 10 minutes.
- Prep Time: 10 minutes
- Cook Time: 0 minutes
- Total Time: 10 minutes
- Yield: 2 servings 1x
- Category: Appetizer
- Method: No-Cook
- Cuisine: Japanese
Ingredients
For the Tuna
- 12 oz sashimi-grade tuna steaks (about 2–3 small tuna steaks)
For the Spicy Sauce
- 2 tablespoons Kewpie Japanese mayonnaise
- 1 teaspoon sesame oil
- ½ teaspoon crispy chili oil
- 1 teaspoon sriracha
- ⅛ teaspoon flaky salt
For Garnish
- 1 tablespoon scallion, finely sliced
Instructions
- Prepare tuna: Pat the tuna steaks dry using paper towels, then dice them into small, even cubes to ensure they absorb the sauce evenly and provide a pleasant texture.
- Mix sauce: In a medium bowl, thoroughly combine the Kewpie Japanese mayonnaise, sesame oil, crispy chili oil, sriracha, and flaky salt to create a creamy, spicy dressing that complements the tuna.
- Toss tuna: Add the diced tuna into the bowl with the sauce and gently fold until each piece is well coated, being careful not to break up the delicate tuna cubes.
- Finish: Sprinkle the finely sliced scallions over the tuna mixture for a fresh, bright flavor, and serve immediately to enjoy at its freshest.
Notes
- Use sashimi-grade tuna for safety and the best texture.
- Adjust the sriracha and chili oil quantities to your preferred spice level.
- Serve immediately to preserve freshness and texture of the raw tuna.
- This recipe is ideal as a light appetizer or served over rice for a main dish.
Keywords: Spicy Tuna, Sushi, Japanese Recipe, Raw Tuna, Easy Tuna Recipe, Kewpie Mayo Sauce, No-Cook Tuna, Tuna Appetizer

