Watermelon Soju Recipe (Subak Soju)

by liliana
Watermelon Soju Recipe

Summer is in full swing and that means all the delicious fruits and vegetables are ripe for picking! One of my favorites is watermelon. I love to eat it fresh, but decided to try something a little different this time and make watermelon soju. If you’re looking for a fun and refreshing drink to beat the heat, then give this recipe a try!


  • Mini seedless watermelon: They are the perfect size for presenting cocktails. They’re also easier to handle and look more impressive on your cocktail bar than regular sized fruits do!
  • Lemon-lime soda: The bubbles in the soda helps to add carbonation to your soju.
  • Ice: Ice will be needed to chill the soju and make it more refreshing.
  • Soju: It is a distilled liquor usually made from rice, barley, or sweet potatoes. Its flavor is similar to vodka and it’s usually served cold or as a base for cocktails.
  • Yakult: This is a probiotic drink made from fermented milk. It’s sweet and tangy taste balances out the strong soju flavor in this recipe.

Check out : What does Soju with Yakult taste like

How To Make Watermelon Soju

1. Cut off the top of mini watermelon and scoop out all of the flesh with a spoon.

2. Place the hollowed-out halves of watermelon onto a baking tray and freeze for at least an hour or until frozen solid.

3. Once frozen, use a sharp knife to cut each half into 2-3 inch cubes.

4. Place the cubes into a blender and blend until the watermelon is completely pulverized.

5. Strain the mixture through a fine sieve to remove any large pieces of seeds or fiber from the juice.

6. In a tall glass, add 1-2 ounces (30-60ml) of soju, the watermelon juice, 1-2 ounces (30-60ml) of lemon-lime soda and a splash of Yakult.

7. Fill the glass with ice and stir gently to combine everything together.

8. Garnish with watermelon cubes or slices, if desired.

9. Serve cold and enjoy!

Video How To Make Watermelon Soju

Recipe Tips:

– You can also use regular sized watermelons or any other type of melon to make this recipe.

– You can adjust the amount of soju, lemon-lime soda and Yakult according to your taste preferences.

– Feel free to add some fresh mint leaves for extra flavor and aroma.

– If you’re not a fan of soju, you can also substitute with vodka or rum.

– You can make a large batch of the watermelon juice and store in the freezer for up to 3 months.

– If you don’t have a fine sieve, use several layers of cheesecloth instead.

How To Store

Watermelon soju can be served immediately or stored in the refrigerator for up to 3 days. If you have any leftover watermelon juice, it can be stored in an airtight container in the freezer for up to 3 months.

More Drink Recipe:

Frequently Asked Questions

What Mix Goes Well With Soju?

Soju can be mixed with just about anything, from fruit juices to carbonated drinks. It’s also great for making cocktails such as the popular Korean somaek (soju and beer) or a Watermelon Soju.

Can I Use Other Types Of Melon?

Yes, you can definitely use other types of melon for this recipe. Just make sure that you adjust the amount of sugar accordingly, as some melons can be sweeter than watermelon.

Can I Make The Watermelon Juice Ahead Of Time?

Yes, you can definitely make the watermelon juice ahead of time and store it in an airtight container in the freezer for up to 3 months. Just thaw it out before using.

Is Soju Hard Liquor?

Yes, soju is a distilled liquor made from grains such as rice, barley, or sweet potatoes. It has a similar flavor to vodka and is usually served cold.

How Much Alcohol Is In A Soju?

Soju typically has an alcohol content of 20-30%. It can be higher or lower depending on the brand.

Are Soju Cocktails Strong?

The strength of a soju cocktail will vary depending on the ingredients used. Generally, soju cocktails are not overly strong but can still pack a punch if you’re not careful. We recommend starting with small amounts of soju and adjusting the quantities according to your taste preferences.


With summer just around the corner, Liliana Kitchen thought it would be the perfect time to share a refreshing watermelon soju recipe that is perfect for all your outdoor gatherings. This drink is easy to make and can be enjoyed by everyone! I hope you enjoy it.

Watermelon Soju Recipe

Watermelon Soju Recipe

Prep Time: Cooking Time:
Nutrition facts: 200 calories 20 grams fat
Rating: 5.0/5
( 1 voted )


  • Small seedless watermelons, kept in the fridge: 2 
  • Soju, kept in the fridge: 2 bottles of 
  • Ice
  • Yakult: 2 bottles


1. Cut the watermelon into cubes and freeze for two hours.

2. Place a handful of ice in a large glass.

3. Add two shots of soju to the glass, followed by one bottle of Yakult.

4. Fill the glass with frozen watermelon cubes and stir gently until everything is mixed evenly together.

5. Serve chilled, garnished with a watermelon slice and enjoy!


  • You can also add other fruits such as strawberries or mangoes for a more flavorful drink.
  • If you want your drink to be sweeter, try adding some sugar syrup or honey.
  • To make it less strong, use some soda water instead of soju.
  • For a non-alcoholic option, replace the soju with sparkling water and omit the Yakult.
  • To make a slushy-style Watermelon Soju, blend the frozen watermelon cubes and other ingredients together in a blender.
  • If you'd like to serve your drink differently, try it poured over ice cream or with some crushed ice.

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