Koi Matcha Jelly

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As the heat of summer approaches, there is a particular dessert that I find myself returning to year after year. In the Japanese confectionery, this Professional Matcha Jelly stands out for its bold, earthy profile and its incredibly refreshing finish.

For a professional pastry chef, the beauty of a jelly lies not just in its flavor, but in its mouthfeel. After more than a decade of developing desserts, I’ve found that the secret to the perfect set isn’t found in a standard grocery store aisle—it’s found in a very specific ingredient called Ina Agar L.

The Professional Secret: Why Ina Agar L or Matcha Jelly?

While many are familiar with traditional kanten (agar-agar), Ina Agar L is in a category of its own. I have used this product for over 10 years for everything from anmitsu to delicate fruit jellies.

• The Texture: Unlike standard agar, which can be brittle or crumbly, Ina Agar L produces a silky, translucent, and smooth finish that feels much closer to gelatin but remains entirely plant-based.
  
• Heat Stability: It sets at room temperature and, once set, it will not melt—making it perfect for outdoor summer gatherings.
  
• Flavor Purity: It is odorless and tasteless, allowing the delicate nuances of high-quality matcha to shine through.
  
  

If you are on the East Coast, you can find it at MTC Kitchen.

Chef’s Note: The Science of the Perfect Set

For those curious about the world of professional Japanese ingredients, I’ve included a video from the manufacturer. Even if you don’t speak the language, you can see the incredible range of textures and applications they’ve mastered!”
https://www.youtube.com/watch?v=FP979WeW0Rg

The Recipe: Professional Koi Matcha Jelly

Ingredients

Ingredient	Weight (Metric)	US Volume (Approx.)
Matcha Powder	13g	2 tbsp + 1/2 tsp
Hot Water (70–80°C)	40g	2 tbsp + 2 tsp
Water	450g	1 7/8 cups
Granulated Sugar	60g	1/4 cup + 1 tbsp
Ina Agar L	10g	1 tbsp

Instructions

1. Prepare the Matcha Paste: In a small bowl, add the hot water to the matcha powder a little at a time. Whisk or stir until you have a smooth, lump-free paste.
   
2. Boil the Base: In a pot, combine the water, sugar, and Ina Agar L. Bring the mixture to a boil. Once boiling, continue to cook for exactly one minute to ensure the agar is fully activated.
   
3. Incorporate: Slowly pour the agar mixture into your matcha paste, stirring constantly to ensure a uniform color and texture.
   
4. Set: Pour the liquid into your desired molds or a flat container. Let it cool, then transfer to the refrigerator to set completely.

Comparing Your Setting Agents

I understand that professional ingredients aren’t always on hand. Depending on what you have in your pantry, the texture of your jelly will change. Here is a quick guide:

Setting Agent	Amount	Resulting Texture
Ina Agar L (Recommended)	10g (~1 tbsp)	Silky, translucent, elegant restaurant finish; stable in heat.
Standard Agar Agar	4g (~1 ½ tsp)	Traditional, firm with a clean snap; great for clean-cut cubes.
Powdered Gelatin	15g (~5 tsp)	Soft, classic melt-in-your-mouth wiggle; must be kept cold.

Beyond the Bowl: How to Serve Your Matcha Jelly

This jelly is bold and flavorful enough to stand completely on its own, but its true magic lies in its versatility. As a pastry chef, I love playing with textures, and this recipe offers the perfect canvas for both traditional and modern presentations.

Here are two of my absolute favorite ways to enjoy it:

• Classic “Matcha Anmitsu” Style For an elegant, traditional Japanese dessert, cut the chilled jelly into clean cubes and style it as an Anmitsu. Pair it with a generous scoop of sweet red bean paste (anko) and a handful of chewy, fresh shiratama mochi. To finish, give it a rich drizzle of kuromitsu (black sugar syrup) or a pour of my vibrant [Matcha Syrup Recipe]. The contrast between the silky jelly, the dense sweetness of the beans, and the chew of the mochi is pure perfection.
  
  
• The Ultimate Cold Drink Upgrade If you want something modern and refreshing, try adding this jelly to your drinks! Cut or crush the jelly into smaller, bite-sized pieces and drop them into the bottom of a glass. Pour your favorite iced matcha latte, cold brew green tea, or even a matcha smoothie right over the top. It adds a luxurious, textural element similar to boba, turning a simple afternoon beverage into a decadent, drinkable dessert.

🍵 Craving More Matcha?

If you are a true matcha enthusiast, the journey doesn’t have to end with this jelly! I’ve spent a lot of time perfecting green tea flavors in my kitchen. Here are a few reader-favorite recipes you should try next:

• [Homemade Matcha Paste]: The perfect, versatile staple to keep in your fridge for quick lattes, spreads, and baking.
  
• [Matcha Chia Pudding]: A nutrient-dense, healthy breakfast or snack that brings a vibrant boost to your morning routine.