Baked Watermelon Sashimi with Sesame Seeds and Spicy Soy Dipping Sauce Recipe
Introduction
Watermelon sashimi is a refreshing and unexpected twist on traditional sashimi, using sweet watermelon in place of fish. This warm, marinated watermelon dish pairs perfectly with a savory dipping sauce and crunchy sesame seeds, making it a unique treat for summer gatherings.

Ingredients
- 1 watermelon, peeled
- 1 tbsp soy sauce
- 1 tbsp apple cider vinegar
- 1 tbsp sesame oil
- 2 tbsp mixed sesame seeds
- 4 tbsp soy sauce (for dipping sauce)
- 1 tsp sriracha
- 1 tsp sesame oil (for dipping sauce)
Instructions
- Step 1: Preheat the oven to 180°C (160°C fan/gas mark 4). Halve the watermelon and cut it into slices about ½cm to 1cm thick.
- Step 2: Arrange the watermelon slices in a deep baking dish, slightly overlapping them. Pour over 1 tbsp soy sauce, 1 tbsp apple cider vinegar, and 1 tbsp sesame oil. Toss gently to coat all slices evenly.
- Step 3: Bake the watermelon slices for 40 minutes, or until they become soft. Remove from the oven and let them cool completely.
- Step 4: While the watermelon cools, mix 4 tbsp soy sauce, 1 tsp sriracha, and 1 tsp sesame oil in a small bowl to make the dipping sauce.
- Step 5: Once cooled, arrange the watermelon sashimi on a serving plate. Sprinkle the mixed sesame seeds over the top and serve with the dipping sauce on the side.
Tips & Variations
- For extra flavor, sprinkle a little chopped fresh cilantro or mint over the watermelon before serving.
- Adjust the sriracha in the dipping sauce to suit your preferred spice level.
- Try using white or black sesame seeds individually for a different look and flavor.
Storage
Store any leftover watermelon sashimi in an airtight container in the refrigerator for up to 2 days. Due to the softness of the baked watermelon, it’s best enjoyed fresh or within a day. Reheat gently in the oven if preferred, but it can also be served cold.
How to Serve
Serve this delicious recipe with your favorite sides.
FAQs
Can I use a different type of vinegar?
Yes, rice vinegar or white wine vinegar can be used as a substitute for apple cider vinegar to give a slightly different tang.
Is this dish suitable for vegans?
Absolutely! Watermelon sashimi is completely plant-based, making it a perfect vegan-friendly appetizer or snack.
PrintBaked Watermelon Sashimi with Sesame Seeds and Spicy Soy Dipping Sauce Recipe
This Watermelon Sashimi recipe transforms fresh watermelon into a savory, tender dish by baking it with soy sauce, apple cider vinegar, and sesame oil. Served with a flavorful dipping sauce of soy, sriracha, and sesame oil, and garnished with mixed sesame seeds, it offers a unique and refreshing twist on sashimi with a delicate umami flavor.
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Total Time: 55 minutes
- Yield: 4 servings 1x
- Category: Appetizer
- Method: Baking
- Cuisine: Fusion
- Diet: Vegetarian
Ingredients
Main Ingredients
- 1 watermelon, peeled
- 1 tbsp soy sauce
- 1 tbsp apple cider vinegar
- 1 tbsp sesame oil
For the Dipping Sauce
- 4 tbsp soy sauce
- 1 tsp sriracha
- 1 tsp sesame oil
Garnish
- 2 tbsp mixed sesame seeds
Instructions
- Prepare the Oven and Watermelon: Preheat your oven to 180°C (160°C fan) or gas mark 4. Halve the peeled watermelon, then slice it into ½cm to 1cm thick slices.
- Arrange and Marinate: Place the watermelon slices in a deep baking dish, slightly overlapping them. Pour over 1 tbsp soy sauce, 1 tbsp apple cider vinegar, and 1 tbsp sesame oil. Toss gently to evenly coat all the slices.
- Bake the Watermelon: Bake the watermelon in the preheated oven for 40 minutes until the slices become soft and tender. After baking, remove from the oven and allow them to cool completely.
- Prepare the Dipping Sauce: While the watermelon cools, mix together 4 tbsp soy sauce, 1 tsp sriracha, and 1 tsp sesame oil in a small bowl to create a spicy and savory dipping sauce.
- Assemble and Serve: Once cooled, arrange the baked watermelon slices on a serving plate. Sprinkle the 2 tbsp mixed sesame seeds evenly over the top. Serve the dish with the prepared dipping sauce on the side for added flavor.
Notes
- Baking the watermelon softens its texture and intensifies its flavor, contrasting with its usual crispness.
- Adjust the sriracha amount in the dipping sauce to control the spice level according to your preference.
- This dish is a creative vegetarian appetizer or side, perfect for summertime entertaining.
- Ensure to cool the watermelon completely before serving to allow the flavors to meld well.
Keywords: Watermelon sashimi, baked watermelon, watermelon appetizer, vegetarian appetizer, summer recipes, savory watermelon

