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Home » Recipes » Side Dishes (Appetizer)

Japanese Kabocha Salad

Published: Sep 25, 2024 | Modified: May 3, 2025 By Ryo Hikita | Leave a Comment

Kabocha squash is delicious when simmered or roasted, but in Japan, it is also commonly enjoyed in salads mixed with mayonnaise. Try this Japanese Kabocha Salad recipe, which brings out the natural flavor and texture of kabocha to the fullest.

↓ Step-by-Step Recipe  

Japanese Kabocha Salad
Jump to:
  • What is Japanese Kabocha Salad?
  • The nutritional power of kabocha
  • Adding extra ingredients
  • 📋Step-by-step recipe
  • Tips on how to make
  • Recipe card

What is Japanese Kabocha Salad?

Japanese Kabocha Salad is a dish made by mashing cooked kabocha squash and seasoning it, typically mixed with mayonnaise. You can adjust the texture based on how finely you mash the kabocha: a coarser mash retains more of its natural texture, while a finer mash gives it a smoother, creamier consistency.

Although this dish can be made using a steamer, it is usually prepared in a microwave for convenience. The natural sweetness of the kabocha pairs perfectly with the richness of the mayonnaise. It is easy to make, so feel free to give it a try.

Japanese Kabocha Salad

The nutritional power of kabocha

Japanese kabocha salad is a dish that highlights the flavor of kabocha. Kabocha is one of the most nutrient-dense vegetables, making it a great choice to incorporate into your diet. Here are some of the main nutrients:

  • Vitamin A
  • Vitamin C
  • Vitamin E
  • β-carotene
  • Carbohydrates
  • Dietary fiber

Among these, vitamins A, C, and E play crucial roles in supporting immune function and have antioxidant properties. This combination is even referred to as 'Vitamin Ace' in Japan.

Additionally, vitamins A and E are fat-soluble, meaning their absorption is enhanced when consumed with oil. This is why mayonnaise, which is primarily made of oil, is often used in this dish.

Japanese Kabocha Salad

Adding extra ingredients

Japanese kabocha salad can be made with just kabocha squash, but it is also common to add extra ingredients. Popular additions include onions, cucumbers, ham, bacon, raisins, and nuts.

These ingredients enhance the flavor and texture of the dish, but since kabocha is the star of this salad, it is recommended to limit additional ingredients to no more than two. I used onions in this recipe, but you can experiment with other ingredients according to your preference.

Japanese Kabocha Salad

📋Step-by-step recipe

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Ingredients

Servings: 3

US Customary - Metric
  • 10.6 oz kabocha squash
  • 1.4 oz onion
  • - pinch of sugar (for the onion)

Seasonings:

  • ⅛ tsp salt
  • ⅛ tsp ground black pepper
  • 1 ¼ Tbsp Japanese mayonnaise (such as Kewpie Mayo, 0.53 oz/15 g per 1 Tbsp. For a homemade version, please refer to the linked article.)
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Instructions

🕒 Total: 30 mins mins
Japanese kabocha salad_instruction-1

Step 1
Remove the seeds and membrane from kabocha, then cut it into bite-sized pieces. Place the pieces in a microwave-safe bowl, cover the bowl with plastic wrap, and microwave on medium power (500W) for about 5 minutes, until the kabocha is tender.


Japanese kabocha salad_instruction-2

Step 2
Sprinkle salt and pepper over the kabocha, and mash it with a fork or spoon until it loses its shape (you can leave it a bit chunky if you prefer). Let it cool down to just below body temperature.


Japanese kabocha salad_instruction-3

Step 3
Slice onion very thinly. Sprinkle salt or sugar over the slices and massage them. Arrange the slices so that they overlap as little as possible, and let them sit for about 10 minutes. Then, squeeze them by hand to remove any moisture.


Japanese kabocha salad_instruction-4

Step 4
Add the onion slices and Japanese mayonnaise to the bowl with the kabocha, and mix well.


To store

You can store it in the refrigerator for up to 3 days.

Tips on how to make

  • Slice the onions very thinly and sprinkle sugar over the slices. This will help reduce their pungency.
  • Add mayonnaise after the kabocha has cooled to below 104℉ (40℃). Adding mayonnaise while the kabocha is still warm may cause the components of the mayonnaise to separate, which could compromise the flavor.

If you try this recipe, I’d love to hear what you think. Please consider leaving a review and star rating in the comments below. If you enjoyed it, I’d really appreciate it if you shared it with your friends.

Recipe card

Japanese Kabocha Salad

Japanese Kabocha Salad

Kabocha squash is delicious when simmered or roasted, but in Japan, it is also commonly enjoyed in salads mixed with mayonnaise. Try this Japanese Kabocha Salad recipe, which brings out the natural flavor and texture of kabocha to the fullest.
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Print Recipe Pin Recipe
Prep Time: 5 minutes mins
Cook Time: 5 minutes mins
Cool Time: 20 minutes mins
Total Time: 30 minutes mins
Servings: 3

Ingredients
 
 

  • 10.6 oz kabocha squash
  • 1.4 oz onion
  • - pinch of sugar (for the onion)

Seasonings:

  • ⅛ tsp salt
  • ⅛ tsp ground black pepper
  • 1 ¼ Tbsp Japanese mayonnaise (such as Kewpie Mayo, 0.53 oz/15 g per 1 Tbsp. For a homemade version, please refer to the linked article.)
Prevent your screen from going dark

Instructions
 

  • Remove the seeds and membrane from kabocha, then cut it into bite-sized pieces. Place the pieces in a microwave-safe bowl, cover the bowl with plastic wrap, and microwave on medium power (500W) for about 5 minutes, until the kabocha is tender.
    Japanese kabocha salad_instruction-1
  • Sprinkle salt and pepper over the kabocha, and mash it with a fork or spoon until it loses its shape (you can leave it a bit chunky if you prefer). Let it cool down to just below body temperature.
    Japanese kabocha salad_instruction-2
  • Slice onion very thinly. Sprinkle salt or sugar over the slices and massage them. Arrange the slices so that they overlap as little as possible, and let them sit for about 10 minutes. Then, squeeze them by hand to remove any moisture.
    Japanese kabocha salad_instruction-3
  • Add the onion slices and Japanese mayonnaise to the bowl with the kabocha, and mix well.
    Japanese kabocha salad_instruction-4

Notes

  • You can store it in the refrigerator for up to 3 days.

Nutrition

Calories: 76.23kcal Carbohydrates: 9.89g Protein: 1.11g Fat: 4.15g Saturated Fat: 0.7g Polyunsaturated Fat: 0.06g Monounsaturated Fat: 0.01g Sodium: 113.74mg Potassium: 371.05mg Fiber: 1.75g Sugar: 2.76g Vitamin A: 1370.03IU Vitamin C: 13.3mg Calcium: 31.51mg Iron: 0.61mg
Author: Ryo Hikita (Umami Pot)
Cuisine: Japanese
Category: Side Dishes, Vegetable
Keyword: kabocha, mayonnaise
Enjoyed this recipe?I’d really appreciate it if you shared it with your friends.

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Welcome to Umami Pot!

I'm Ryo, a Japanese culinary expert living in Osaka, Japan. Here, I would like to share with you how to make Japanese dishes actually enjoyed in Japan, from traditional to modern, as clearly, concisely, and deliciously as possible.

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