Sweet with a bit of tang, this Watermelon Soju Cocktail, also known as a subak soju, is a fantastic addition to any summer soiree. Plus, it comes together in less than 5 minutes!
About this recipe
Fruity Soju Cocktail: with just a few minutes and a few ingredients, this soju cocktail is fruity and a bit tangy with a sweet aftertaste.
Summertime Korean Cocktail: the summertime fruit of choice in Korea is definitely the watermelon, which is popularly sold at farm stands along the road or from the backs of the fruit trucks that drive through every small town in Korea. Much like the beloved matcha drinks, during the summer in Korea, watermelons big & small take over.
Super Easy to Make: requiring just 4 ingredients and as many minutes, it doesn’t get much more simple than this when it comes to watermelon cocktails (or mocktails if you leave out the soju!).
Soju: this clear liquor is known generically as Korean vodka, and is available in numerous brands and formats around the world, but no more varied than where the drink originated – in South Korea.
Watermelon: this recipe only calls for a half cup of watermelon per serving, but the riper the melon, the sweeter & more flavorful your watermelon soju cocktail will be.
Simple Syrup or Allulose: if you tend to like your drinks sweeter, you can add any liquid sweetener you’d prefer, though allulose is generally my preference.
Ginger Beer or Lemon-Lime Soda: in Korea they have a drink called ‘Cider’ which tastes just like Sprite and is used in all the cocktails. But since there are a lot more drink options in the States, I paired watermelon with the prebiotic prowess of a low-cal Poppi ginger-lime soda (feeds good gut bacteria), which tastes fizzy & delicious.
However feel free to use any soda or seltzer you’d like to pair with watermelon and soju; my boyfriend used ginger beer in his, and I almost liked it better than mine.
How to make watermelon soju cocktails: step-by-step instructions
Step 1. Put the watermelon chunks and simple syrup into your glass and muddle them (you could also use a blender or pre-chop the chunks to make them easier to muddle).
Step 2. Then add the soju & ice and lightly stir everything together with a spoon or chopstick, and top with soda & enjoy!
Recipe notes & tips
Messy Muddling: if you can’t seem to get your watermelon muddled quickly enough, press it against the sides of the glass or pour it into a bowl and chop it into small pieces. Then return it to the glass and get to muddlin’.
No Soda, No Problem: even if you can’t get your hands on the classic Sprite, never fear, because you can use any sweet fizzy drink as a swap for the lemon-lime soda.
Using Flavored Soju: if you decide to use a flavored soju rather than plain soju, note that it will make your drink more sweet & flavorful, but it will also decrease the alcohol content by about a third. You’ll probably want to use no sweetener or a less-sweet soda, to make up for the extra sweetness.
Other soju cocktails to try
Watermelon Soju Cocktail Recipe Card
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Watermelon Soju Cocktail Recipe (Subak Soju)
- 1/2 cup watermelon chunks preferably seedless
- 1/4 cup soju plain or flavored
- 1 tablespoon simple syrup or allulose for more sweetness
- lemon-lime soda or ginger beer to top ~1/2 cup
- ice or freeze the watermelon chunks
- Put the watermelon chunks and simple syrup into your glass and muddle them (you could also use a blender or pre-chop the chunks to make them easier to muddle).
- Then add the soju & ice and lightly stir everything together with a spoon or chopstick, and top with soda & enjoy!