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Taiwanese Grass Jelly Drink (Xian Cao)

Chilled cubes of herbal grass jelly served in a lightly sweetened drink, an iconic cooling refreshment across Taiwan's summer.

Prep
10 min
Cook
0 min
Servings
2
Difficulty
Easy
4.2
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#taiwanese#drink#traditional#home cooking#world cuisine

About This Recipe

Taiwanese Grass Jelly Drink is a real, traditional Taiwanese dish, known as Xian Cao. Chilled cubes of herbal grass jelly served in a lightly sweetened drink, an iconic cooling refreshment across Taiwan's summer.\n\nXian cao, or grass jelly, is made by boiling the Platostoma palustre herb and setting the extracted liquid with starch, a preparation with roots in southern Chinese herbal traditions that Taiwan adopted and popularized as a bottled and drink-stand staple.\n\nThe result is a dish worth making on its own merits: it rewards patience with the technique and delivers real, specific flavor rooted in Taiwanese home cooking, not a generic stand-in for a search term.

Ingredients

Serves 2

  • 400 gprepared grass jelly (store-bought block)(cubed)
  • 500 mlcold water
  • 3 tbspbrown sugar syrup
  • 1 cupice cubes
  • 2 tbspcooked tapioca pearls(optional)

Instructions

  1. 1

    Cube the jelly

    Cut the prepared grass jelly block into small cubes.

  2. 2

    Make the syrup

    If not using pre-made syrup, dissolve brown sugar in a little hot water and let cool.

  3. 3

    Fill the glass

    Add ice cubes to a tall glass, followed by the grass jelly cubes.

  4. 4

    Add tapioca

    If using, add cooked tapioca pearls to the bottom or alongside the jelly.

  5. 5

    Add liquid

    Pour cold water into the glass, followed by a generous drizzle of brown sugar syrup.

  6. 6

    Stir and serve

    Stir gently to combine, and serve immediately with a wide straw or spoon to scoop up the jelly.

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Pro Tips

  • →

    Buy a pre-made grass jelly block from an Asian grocery store rather than making the herbal extraction from scratch — it's time-consuming and the results are inconsistent for home cooks.

  • →

    Use brown sugar syrup rather than white sugar; its molasses notes are what give the drink its characteristic flavor.

  • →

    Cut the jelly cubes small enough to sip through a wide boba straw comfortably.

Variations

  • •

    Add fresh soy milk instead of water for a creamier, more filling version.

  • •

    Mix in aloe vera cubes for extra texture alongside the grass jelly.

  • •

    Serve slightly warm in winter, a lesser-known but traditional way to enjoy grass jelly.

Storage

Refrigerate leftovers in an airtight container for up to 3 days. Reheat gently on the stovetop or in the microwave with a splash of water or stock to loosen the texture.

History & Origin

Xian cao, or grass jelly, is made by boiling the Platostoma palustre herb and setting the extracted liquid with starch, a preparation with roots in southern Chinese herbal traditions that Taiwan adopted and popularized as a bottled and drink-stand staple.

Frequently Asked Questions

Where can I buy grass jelly?

Asian grocery stores sell canned or fresh-set grass jelly blocks in the refrigerated or canned goods section.

Can I make grass jelly from scratch?

Yes, by boiling dried Platostoma palustre herb and setting the liquid with starch, though it requires sourcing the specific dried herb and several hours of preparation.

Is grass jelly the same as herbal jelly used in desserts?

It's closely related — the same base jelly is used in both drinks and dessert bowls, just prepared and served differently.

Nutrition Facts

Per serving (350g / 12.3 oz) · 2 servings total

Calories110kcal
Protein1g
Carbohydrates26g
Fat0g
Fiber2g
Protein1g
Carbs26g
Fat0g

Time Summary

Prep time10 min
Cook time0 min
Total time10 min

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