Ultimate Guide to Making and Storing Cocoa Yokan: A Fusion Dessert

Imagine diving into a dessert that not only satisfies your sweet tooth but also carries with it a whisper of Japanese tradition. Cocoa yokan, a delightful variation of the classic Japanese jelly dessert, combines the rich, comforting taste of cocoa with the subtle, smooth texture of yokan. This treat is perfect for chocolate lovers looking to explore flavors beyond the ordinary.

Originating from Japan, yokan is traditionally made from red bean paste, agar, and sugar, forming a firm jelly that can be sliced and served with tea. By infusing this traditional dessert with cocoa, you bring a Western twist to an Eastern classic, creating a fusion that’s both surprising and familiar.


Continuing from our exploration of cocoa yokan, here’s what you’ll need to create this delightful fusion dessert at home. Gather these ingredients to combine the rich taste of cocoa with the traditional texture of yokan.

Cocoa Yokan Ingredients

  • 1 cup water
  • 4 grams agar-agar powder
  • 100 grams sugar
  • 200 grams red bean paste (anko)
  • 2 tablespoons unsweetened cocoa powder
  • 1/2 teaspoon vanilla extract
  • Whipped cream, for serving
  • Mint leaves, for a refreshing garnish
  • A sprinkle of cocoa powder or chocolate shavings, for an extra chocolatey touch
  • Fresh berries, such as raspberries or blueberries, for a pop of color and freshness

Equipment Needed

To make cocoa yokan successfully at home, having the right equipment will enable you to achieve the perfect texture and presentation of this delightful dessert. Here’s what you will need:

  • Medium Saucepan: For cooking the agar-agar mixture with cocoa and sugar.
  • Whisk: Essential for mixing the cocoa powder and sugar smoothly into the liquid without lumps.
  • Measuring Cups and Spoons: Accurate measurements are key in dessert recipes, particularly for ingredients like agar-agar and cocoa powder.
  • Rubber Spatula: To ensure that you can scrape all the mixture out of the pan and also to aid in smoothing the top of the yokan in the mold.
  • Rectangular Loaf Pan or Traditional Wooden Yokan Mold: The shape of your yokan is traditionally a simple, clean rectangle, and using either a modern loaf pan or a wooden yokan mold will work perfectly.
  • Plastic Wrap or Parchment Paper: To line the mold for easy removal of the yokan once it’s set.
  • Sharp Knife: A sharp knife is necessary to cut the yokan into clean, beautiful slices.
  • Sieve or Fine Mesh Strainer: Optional, but useful for straining the agar mixture to ensure a smooth texture without any undisolved particles.

Make sure each item is clean and ready to use as you prepare to combine the flavors of traditional Japanese dessert with a twist of rich cocoa to delight your taste buds.

Prep Work

Before you begin crafting your cocoa yokan, ensure you’re set up for success with the right preparation. This includes organizing your ingredients and setting up your equipment effectively.

Preparing the Ingredients

  1. Measure the Ingredients: Start by accurately measuring out all your ingredients using measuring cups and spoons. This will ensure that the flavors are balanced and your yokan sets correctly.
  2. Sift the Cocoa Powder: To avoid any lumps in your yokan, sift the cocoa powder using a sieve or fine mesh strainer. This will help it blend smoothly with the other ingredients.
  3. Prepare the Agar-Agar: If you are using agar-agar flakes, take a moment to grind them into a powder with a spice grinder or mortar and pestle for quicker dissolution.
  4. Chop the Sugar: If your recipe calls for block kanten or a similar form of concentrated sugar, chop it into smaller pieces to dissolve more easily in the mixture.

These steps are crucial in achieving the silky texture and rich, even flavor characteristic of a perfect cocoa yokan.

Preparing the Equipment

  • Medium Saucepan: You’ll need this for combining and heating most of your ingredients. Make sure it’s clean and dry before you start.
  • Whisk and Rubber Spatula: Use the whisk to mix your ingredients thoroughly to avoid clumping. The rubber spatula will be helpful in scraping the sides of the saucepan to incorporate every bit of the mixture.
  • Loaf Pan or Wooden Mold: Prepare your mold by lining it with plastic wrap or parchment paper. This not only prevents sticking but also facilitates easy removal of the yokan once it’s set.
  • Knife and Cutting Board: Have a sharp knife and a cutting board ready for slicing your yokan into elegant servings once it’s cooled and set.

Equipping yourself properly and arranging these tools in advance will streamline your cooking process and enhance your overall experience in making cocoa yokan.

Cooking Instructions

Now that you have your ingredients measured and your equipment ready, let’s start cooking up some delicious cocoa yokan.

Cooking the Base Mixture

  1. Pour 500 ml of water into your medium saucepan and gently sprinkle 1 teaspoon of agar-agar powder while stirring continuously. Heat the mixture on low heat and keep stirring to make sure the agar-agar dissolves completely. This could take about 5 to 7 minutes.
  2. Once the agar-agar is fully dissolved, add 100 grams of finely chopped sugar to the saucepan. Increase the heat to medium and continue stirring until the sugar dissolves completely and the mixture starts to simmer. Be careful not to let it boil vigorously as that might affect the texture of the yokan.
  3. Reduce the heat to low, maintaining a gentle simmer. This allows the mixture to thicken slightly, which is crucial for achieving the dense, jelly-like consistency typical of yokan. Continue simmering for an additional 10 minutes, stirring occasionally to prevent any sticking or burning at the bottom of the pan.

Adding Cocoa and Adjusting the Yokan Mixture

  1. After the base mixture has thickened, sift 2 tablespoons of cocoa powder over the saucepan to avoid any lumps. Use your whisk to incorporate the cocoa fully into the mixture, ensuring a smooth and even chocolate color.
  2. Taste the mixture and adjust the sweetness, if necessary. If you prefer a sweeter yokan, you can add up to another 50 grams of chopped sugar. Stir well until the added sugar is completely dissolved.
  3. Keep the mixture on low heat and stir frequently as the cocoa blends with the sugar and agar mixture. This integration is crucial for the deep, robust chocolate flavor characteristic of cocoa yokan.
  4. Continue to cook for approximately 5 minutes, ensuring that the mixture is homogenous and silky in texture. This final cooking stage melds all the flavors together and achieves the perfect thickness that allows the yokan to set properly.

These steps will guide you through creating a cocoa yokan that’s rich in flavor and perfect in texture. Once done, you’re ready to pour the mixture into your mold and let it set.

Shaping and Setting

Now that your cocoa yokan mixture is beautifully smooth and thick, it’s time to shape and set your dessert for that perfect texture and presentation.

Pouring the Mixture

Transfer the hot cocoa yokan mixture into a rectangular mold or any shape you prefer. Use a silicone spatula to help scrape all the mixture out of the pan. Ensure the surface is even by gently tapping the mold on the countertop to remove any air bubbles. This step will help you achieve a smooth top without imperfections.

Serving Suggestions

After your cocoa yokan has set perfectly, present and enjoy it in ways that enhance its delicate flavors and smooth texture.

Cutting and Presentation

To serve your cocoa yokan, dip a sharp knife in hot water and wipe it dry before each slice. This ensures clean, precise cuts without sticking. Slice the yokan into one-inch thick pieces for an ideal serving size. For a visually appealing presentation, arrange the slices on a simple ceramic plate in a staggered fashion. Garnish with a sprinkle of powdered sugar or a few edible flowers to contrast the rich chocolate color.

Pairing with Beverages

Cocoa yokan pairs wonderfully with a variety of beverages that complement its rich cocoa flavor. For a traditional touch, serve with a cup of matcha tea; its slight bitterness and grassy notes enhance the sweetness of the yokan. Alternatively, a creamy latte or robust espresso make excellent companions, providing a warm, aromatic contrast to the chilled dessert. For those who prefer a cold drink, try pairing it with an iced chai latte, which will add spicy undertones to the chocolatey taste.

Storage Tips

After enjoying the delicate fusion of traditional Japanese flavors with the rich intensity of cocoa in your cocoa yokan, proper storage is essential to maintain its freshness and texture. Here’s how you can ensure your cocoa yokan remains delicious for days.


First, make sure the cocoa yokan has cooled completely at room temperature before refrigerating. This prevents condensation from forming, which could alter the texture. Once cooled, cover the yokan in its mold tightly with plastic wrap or transfer it to an airtight container. This protects it from absorbing any odors from other foods in the fridge.

Cocoa yokan stored this way will maintain its best quality for up to a week. Remember to keep it away from strong-smelling food items to preserve its delicate chocolate aroma.


For longer storage, freezing the cocoa yokan is an effective option. Wrap individual slices or the entire block in cling film, then place them in a heavy-duty freezer bag. Before sealing, squeeze out as much air as possible to prevent freezer burn and ice crystals from forming.

When you’re ready to enjoy it again, thaw the cocoa yokan in the refrigerator overnight. Avoid microwaving or heating directly as this can cause the jelly structure to break down, affecting its texture.

  • Always use a clean, dry utensil when cutting the cocoa yokan to avoid introducing moisture into the dessert.
  • If serving yokan that was previously frozen, allow it to sit at room temperature for about 10 minutes. This slight tempering helps enhance the texture and flavor, making it as close as possible to its original form.

Following these storage tips, your cocoa yokan will remain a delightful treat that’s ready to impress at any moment. Whether enjoyed alone or with a cup of your favorite tea, these methods ensure you can savor every bite with freshness guaranteed.


Exploring the delightful world of cocoa yokan offers you a unique taste experience that blends tradition with a chocolate twist. By following the detailed steps provided, you’re set to create this exquisite dessert right in your kitchen. Remember the importance of proper storage to keep your yokan fresh and flavorful. Whether you’re savoring it by yourself or sharing it with friends over tea, cocoa yokan is sure to bring a touch of sophistication and joy to your dessert table. Enjoy the making and the indulging!

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