Fish and fruit seem like an odd pairing, but they work surprisingly well in this tuna and watermelon tartare. The sweet melon and salty tuna are a match made in heaven, a kind of delicious you deserve to try at least once in your life.

Tartare is more typically made with raw steak but plant and seafood-based versions are becoming popular.
Juicy, sweet watermelon and fresh red tuna are a unique but great flavor contrast on their own (much like this watermelon salad with basil), amped up by the addition of soy sauce and sesame oil.
It takes only 20 minutes to prepare this easy and delicious appetizer recipe, including the marinating time. To highlight watermelon even more, serve it with this frozen watermelon summer cocktail.
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Ingredients
- red tuna - You need sushi-grade (sashimi grade) tuna because this is a raw fish dish.
- watermelon - 🍉 Check out how to slice a watermelon for this recipe. it would be easy to play around with different types of melon to see what works well with these ingredients.
- green onion - Also known as scallions, they provide a satisfying crunch and a bit of bite, keeping the dish bold and intriguing from the first mouthful to the last.
*See recipe card for ingredient amounts.
How to Make Tuna Watermelon Tartare

- Just before serving: Mix all of the ingredients and refrigerate for 10 minutes.
- Serve immediately with chives and sesame seeds, and that is all it takes!
Joss' Top Tip
Pat the watermelon cubes dry before adding the other ingredients. This will help to ensure it doesn't water down the dish, enhancing the flavor overall.
Recipe FAQs
You can prep the tuna and watermelon ahead of time and store them separately in tightly covered containers in the fridge, up to a few hours in advance. I recommend combining the ingredients just before serving.
You can use a ring mold, like you would traditional tartare for serving, but it might not stay together so easily. I recommend using a small appetizer dish instead.
Feel free to add some crackers, toast triangles or crostini on the side.
½" to 1" cubes are ideal for this recipe.
Tartare is made with finely chopped raw meat or fish where as carpaccio is made with raw but thinly sliced meat or fish.

More Delicious Fish Recipes to Try
If you tried this 🐟🍉 Tuna and Watermelon Tartare Recipe or any other recipe on my website, please leave a 🌟 star rating and let me know how it went in the 📝 comments below. And please share the recipe!
📋Recipe

Tuna and Watermelon Tartare
Ingredients
- 1 pound red tuna - very fresh (sushi grade), cubed
- 2 cups watermelon - cubed
- ¼ cup green onions - finely chopped
- 3 tablespoons sesame oil
- 3 tablespoons soy sauce
- 1 tablespoon sugar
- sesame seeds and chives - for garnish
Instructions
- Just before serving: Mix all of the ingredients and refrigerate for 10 minutes.
- Serve immediately, topped with chives and sesame seeds.
Equipment
Notes
- This dish should be enjoyed immediately.
- You can prep the tuna and watermelon ahead of time and store them separately in tightly covered containers in the fridge, up to a few hours in advance. I recommend combining the ingredients just before serving.
- Tip: Pat the watermelon cubes dry before adding the other ingredients. This will help to ensure it doesn't water down the dish, enhancing the flavor overall.
- ½" to 1" cubes are ideal for this recipe.
Nutrition
Nutrition information on In the Kitch is provided as a courtesy and is an estimate only. It may not include toppings and/or sauces.












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