As a seasoned unagi kabayaki supplier, I've encountered numerous challenges and inquiries throughout my years in the business. One question that frequently arises is, "How do I make unagi kabayaki sauce thicker?" This seemingly simple query holds significant importance, as the consistency of the sauce can greatly impact the overall flavor and presentation of the dish.
Understanding the Basics of Unagi Kabayaki Sauce
Before delving into the methods of thickening the sauce, it's essential to understand its basic components. Unagi kabayaki sauce, also known as tare, is a savory and sweet sauce that is typically made from a combination of soy sauce, mirin, sake, sugar, and sometimes dashi. The sauce is used to marinate and glaze the eel during the cooking process, imparting a rich and flavorful coating.
The ideal consistency of unagi kabayaki sauce is thick enough to adhere to the eel but not so thick that it becomes overpowering or difficult to spread. A well-thickened sauce will enhance the texture of the dish, providing a glossy and appealing finish.
Methods for Thickening Unagi Kabayaki Sauce
There are several methods that can be used to thicken unagi kabayaki sauce, each with its own advantages and considerations. Here are some of the most common techniques:
1. Reducing the Sauce
One of the simplest and most traditional methods of thickening unagi kabayaki sauce is to reduce it on the stovetop. This involves simmering the sauce over low heat for an extended period of time, allowing the liquid to evaporate and the flavors to concentrate. As the sauce reduces, it will naturally become thicker and more concentrated.
To reduce the sauce, pour it into a saucepan and bring it to a simmer over medium heat. Stir the sauce frequently to prevent it from burning or sticking to the bottom of the pan. Once the sauce has reached a gentle simmer, reduce the heat to low and continue to simmer for 15-20 minutes, or until it has thickened to your desired consistency.
Keep in mind that reducing the sauce can take some time and patience, as it requires constant monitoring and stirring. Additionally, reducing the sauce too much can result in a sauce that is too thick and difficult to work with. It's important to keep an eye on the sauce and remove it from the heat as soon as it has reached the desired consistency.
2. Using a Thickening Agent
Another method of thickening unagi kabayaki sauce is to use a thickening agent. There are several types of thickening agents that can be used, including cornstarch, arrowroot powder, and potato starch. These agents work by absorbing the liquid in the sauce and forming a gel-like consistency, which thickens the sauce.
To use a thickening agent, start by mixing a small amount of the agent with a cold liquid, such as water or sake, to form a slurry. Then, slowly pour the slurry into the simmering sauce, stirring constantly to prevent lumps from forming. Continue to simmer the sauce for a few minutes, or until it has thickened to your desired consistency.
It's important to note that using a thickening agent can alter the flavor and texture of the sauce slightly. Some thickening agents, such as cornstarch, can give the sauce a slightly cloudy appearance and a slightly starchy taste. If you're looking for a more natural and traditional flavor, you may want to consider using a different method of thickening the sauce.
3. Adding Gelatin
Gelatin is another option for thickening unagi kabayaki sauce. Gelatin is a protein that is derived from animal collagen and is commonly used as a thickening agent in cooking. When added to a liquid, gelatin absorbs the liquid and forms a gel-like consistency, which thickens the sauce.
To use gelatin, start by sprinkling the gelatin over a small amount of cold water or sake and allowing it to soften for a few minutes. Then, heat the gelatin mixture over low heat, stirring constantly until the gelatin has dissolved completely. Once the gelatin has dissolved, slowly pour it into the simmering sauce, stirring constantly to prevent lumps from forming. Continue to simmer the sauce for a few minutes, or until it has thickened to your desired consistency.


Keep in mind that using gelatin can give the sauce a slightly different texture and mouthfeel than other thickening agents. Gelatin can also be more difficult to work with than other thickening agents, as it requires careful heating and stirring to prevent lumps from forming.
Tips for Making the Perfect Unagi Kabayaki Sauce
In addition to thickening the sauce, there are several other tips and tricks that can help you make the perfect unagi kabayaki sauce. Here are some of my top tips:
1. Use High-Quality Ingredients
The quality of the ingredients you use will have a significant impact on the flavor and quality of the sauce. When making unagi kabayaki sauce, it's important to use high-quality soy sauce, mirin, sake, and sugar. Look for ingredients that are fresh, flavorful, and free from additives and preservatives.
2. Balance the Flavors
Unagi kabayaki sauce should have a balance of sweet, savory, and umami flavors. To achieve this balance, it's important to use the right proportions of soy sauce, mirin, sake, and sugar. Start by using a recipe as a guide, but don't be afraid to adjust the proportions to suit your personal taste.
3. Cook the Sauce Slowly
Cooking the sauce slowly over low heat is essential for developing the flavors and thickening the sauce. Avoid cooking the sauce too quickly or over high heat, as this can cause the sauce to burn or become bitter.
4. Let the Sauce Rest
After cooking the sauce, it's important to let it rest for a few minutes before using it. This allows the flavors to meld together and the sauce to thicken slightly. You can also refrigerate the sauce for a few hours or overnight to further thicken it.
Our Unagi Kabayaki Products
As a leading unagi kabayaki supplier, we offer a wide range of high-quality unagi kabayaki products, including Vacuum Kabayaki Eel, Frozen Roasted Eel, and Kabayaki Eel Steak. Our products are made from the freshest and highest-quality eel, and are carefully prepared using traditional methods to ensure the best possible flavor and texture.
If you're interested in learning more about our unagi kabayaki products or would like to place an order, please don't hesitate to contact us. We would be happy to discuss your needs and provide you with more information about our products and services.
Conclusion
Making unagi kabayaki sauce thicker is a simple process that can greatly enhance the flavor and presentation of the dish. By using one of the methods outlined above and following the tips and tricks provided, you can make the perfect unagi kabayaki sauce every time. Whether you're a professional chef or a home cook, our high-quality unagi kabayaki products are the perfect choice for creating delicious and authentic Japanese cuisine. Contact us today to learn more about our products and to start placing your orders.
References
- "Japanese Cooking: A Simple Art" by Shizuo Tsuji
- "The Japanese Kitchen" by Tadashi Ono and Harris Salat
- "Japanese Home Cooking: Simple Recipes from the Land of Rice and Noodles" by Sonoko Sakai
