Stunning Japanese Jelly Candy Recipe
Create your own enchanting, edible gemstones with this reliable Japanese jelly candy recipe. Known as Kohakutou, these vibrant wagashi boast a shattering, ASMR-worthy sugar shell and a tender, perfectly sweet jelly center.
Ingredients
- 1 cup water
- 1 tablespoon passion fruit pulp or matcha powder
- 1.5 cups granulated sugar
- 1 tablespoon agar agar powder
- 1 teaspoon Pandan extract
Instructions
Build the Jelly Base
- If you are using the Butterfly Pea Flower twist, steep the tea in your measured water first until it is a saturated blue, then strain, and keep the amount at exactly 1 cup water so the set stays reliable.
- In a small saucepan, whisk together the water, 1 tablespoon passion fruit pulp or matcha powder, 1 tablespoon agar agar powder, and 1.5 cups granulated sugar until you do not see dry pockets of agar. The mixture will look cloudy and a bit grainy at this stage.
Boil, Then Simmer to Activate the Agar
- Set the pan over medium-low heat and warm it patiently for about 6 minutes until it reaches a true boil. You will smell the sugar turn syrupy and see steady bubbles across the surface.
- Reduce the heat and simmer for about 4 more minutes, stirring so nothing sticks. Watch for the moment the syrup hangs on your spoon, it should cling and sheet off slowly rather than dripping like water.
Pour, Color, Set, Shape, Then Dry
- Pour the hot mixture into a flat, heatproof container, aiming for at least 1 inch of depth so you can tear chunky, 3D crystal shapes later.
- Add a micro-pinch of citric acid now for the color shift, and stir gently with a toothpick or skewer. You will see the blue move toward violet or pink depending on how much acid touches the tea pigments.
- If you want a marbled look, let the surface sit for about 1 minute so it thickens slightly, then swirl tiny streaks of color with a toothpick, keeping it delicate so you do not create muddy puddles.
- Refrigerate the container for about one hour. The jelly should feel firm and cool, with a clean bounce when you press the center.
- Run a knife around the edges to loosen, lift the slab out, and tear it by hand into jagged, glassy pieces, pressing any small fragments onto bigger pieces to build chunky geodes.
- Lay the pieces on parchment paper at room temperature for about one week, and cover loosely with tented parchment so air can circulate. The outside should become dry and crunchy while the inside stays softly chewy.
Notes
Drying Tip: The candy crystallizes best around 68 to 75°F (20 to 24°C) with 35 to 50% humidity. Keep the pieces spaced out on parchment and cover them loosely. Tightly sealed plastic wrap traps moisture and prevents the crisp shell from forming.
Troubleshooting: If the jelly does not set after an hour in the fridge, return it to the saucepan, bring it to a boil, and simmer for 4 minutes to fully activate the agar agar. Do not add extra liquid.
Coloring Technique: Too much citric acid or alcohol-based extract can break down the agar structure. Add only a micro-pinch of citric acid after you pour to achieve a safe, beautiful color shift.
Nutrition information is estimated based on common ingredients and serving sizes and may vary.
Nutrition
Calories: 58kcalCarbohydrates: 15gSodium: 1mgPotassium: 2mgSugar: 15gCalcium: 2mg
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