This post may contain affiliate links, please see the privacy policy for details.

Skip the store-bought version and make your own sweet, savory homemade eel sauce (unagi sauce) in minutes with just four ingredients. This rich, umami-packed sauce is a classic Japanese condiment perfect for drizzling over sushi, sashimi, rice bowls or grilled seafood. It’s incredibly easy to make and adds bold flavor to any dish. Pair this delicious eel sauce (or kabayaki sauce as it’s also known) with ceviche or grilled shrimp and enjoy the rich, tangy flavor.

A glass pitcher filled with frothy brown liquid, possibly homemade Eel Sauce (Unagi Sauce), with foam clinging to the rim—perfect as a sauce for seafood.

Homemade eel sauce (unagi sauce) is a sweet, salty and umami-rich Japanese condiment that’s perfect for sushi, rice bowls and grilled seafood dishes.

Also try this easy copycat Panda Express black pepper chicken, tofu Thai wraps, or some delicious vegan tofu kung pao.

Tostada topped with shrimp ceviche and avocado slices, finished with a drizzle of homemade Unagi sauce for an extra punch of flavor.

Why You’ll Love It

Versatile: This eel sauce is a versatile, sweet and tangy 4-ingredient recipe that’s ready in just 10 minutes. It’s perfect for drizzling over your favorite sushi rolls, sashimi, or shrimp ceviche.
Easy:
It’s so easy you’ll wonder why you haven’t been making it your whole life.
Customizable: You can adjust the thickness of the sauce by adding water and even the level of sweetness can be adjusted.

Small glass pitcher filled with dark Homemade Eel Sauce (Unagi Sauce), placed on a light textured cloth.

Classic Eel Sauce Ingredients

A complete list of ingredients and amounts can be found in the recipe card below.

Mirin: This sweet Japanese rice wine lends a depth of sweetness and flavor to the unagi sauce. Look for it in the Asian section of your grocery store.
Granulated sugar: This sweet ingredient adds the perfect level of sweetness to the sauce, helping to balance out the salty soy sauce.
Soy sauce: For a gluten-free eel sauce recipe, be sure to use a gluten-free tamari or soy sauce. This umami-rich sauce adds a depth of flavor and a salty kick.
Rice wine vinegar: The mild acidity of rice wine vinegar helps to cut through the sweetness of the mirin and sugar, balancing the flavors of the eel sauce.

Four small white bowls containing sugar, soy sauce, rice vinegar, and mirin on a gray surface—perfect ingredients for homemade unagi sauce, a delicious choice as a sauce for seafood.

How to Make the Best Homemade Eel Sauce

For more detailed instructions with weights and measurements, jump to the printable recipe card.

Combine the ingredients: In a saucepan, combine the mirin, soy sauce, sugar, and rice wine vinegar.
Cook the sauce: Cook the sauce over medium heat, stirring often, until it has reduced to a thick syrup. This will take about 10 minutes.
Tweak the consistency if needed: If the sauce is too thick, you can thin it out by adding a spoon of water at a time until it reaches your desired consistency.

Small glass pitcher filled with dark brown espresso crema, resembling rich unagi sauce, sitting on a light textured surface.

Substitutions and Variations

Regional variations: You can add eggs, dashi or sake to this eel sauce to give it a different twist.
Gluten-free: Make sure your mirin and soy sauce are both gluten-free.
Sweeter or saltier: You can adjust the sweetness or saltiness of this eel sauce by adding more sugar or soy sauce, according to your preference.
Mirin substitute: In case you can’t find mirin, you can substitute sweet marsala wine or dry sherry at a pinch. Even dry white wine would do, but you’d need to increase the sugar to offset the lack of sweetness.

Close-up of rich espresso crema atop a freshly brewed cup of coffee, as inviting as homemade unagi or a drizzle of savory Homemade Eel Sauce (Unagi Sauce) on your favorite dish.

Serving Suggestions

Seafood: This eel sauce is perfect for drizzling over sushi, sashimi, or any other seafood dishes. Whether it’s plain seafood or ceviche, this sauce adds a burst of flavor that complements the delicate fish. I especially love it with this fresh Mexican-style shrimp ceviche with avocado.
With potstickers: Enjoy eel sauce with gluten-free potstickers, turkey potstickers or pork potstickers.
Grilled dishes: Consider using this eel sauce on BBQ dishes or any grilled meats. The sweet and salty flavors of the sauce pair well with the charred and smoky notes of grilled food.

A shrimp and avocado tostada topped with Homemade Eel Sauce (Unagi Sauce) and sesame seeds on a plate, with more ingredients in the background.

How to Store Unagi Sauce

Store: After making the eel sauce and allowing it to cool, if you have any leftovers, you can store it in an airtight container in the refrigerator. It should keep well for up to two weeks.
Freeze: Fortunately, you can also freeze this homemade sauce. Allow it to cool down, then transfer it to a freezer-safe container. It can be frozen for up to 2 months. When you’re ready to have it, allow it to thaw overnight in the fridge.

A glass pitcher filled with brown unagi sauce, a delicious sauce for seafood, sits on a folded light green cloth.

Top Tips 

Choose the right soy sauce: When making eel sauce, opt for low-sodium and gluten-free soy sauce if possible. This allows you to control the saltiness of the sauce and makes it suitable for those with dietary restrictions.
Don’t overcook: When reducing the sauce in the saucepan, be careful not to overcook it. The sauce will thicken as it cools, so if it becomes too thick, you can add a bit of water to achieve the desired consistency.
Stir often: While cooking the ingredients in the saucepan, make sure to stir often. This helps to evenly combine the flavors and prevents the sauce from sticking to the bottom of the pan.

A glass cup of coffee on a folded light green towel, set on a gray textured surface—perfect for savoring after trying an easy eel sauce recipe.

Homemade Unagi Sauce FAQs

Is eel sauce gluten free?

You can make gluten free eel sauce by ensuring the mirin and soy sauce are both gluten free.

How does eel sauce look and taste?

This sauce for seafood looks like a dark brown syrup and tastes salty, smoky, sweet, and neutral all at once. It’s not named because there is any eel in it – a bit like duck sauce (which doesn’t have duck in it!)

How can I adjust the consistency of the sauce?

If the eel sauce is too thick, you can add a spoon of water at a time till it is the consistency of a thick syrup. If it’s too thin, you can simmer it for a few more minutes to thicken it up.

A spoon drizzles homemade unagi sauce over a tostada topped with avocado and ceviche on a white plate.

Unagi Sauce Recipe

5 from 7 votes

Homemade Eel Sauce (Unagi Sauce)

This homemade eel sauce, also known as unagi sauce, is a versatile, sweet, and tangy 4 ingredient recipe that's ready in just 10 minutes. It's perfect for drizzling over your favorite seafood dishes.
Prep Time: 5 minutes
Cook Time: 10 minutes
Total Time: 15 minutes
Servings: 20

Ingredients 

Instructions 

  • Combine all ingredients in a saucepan and cook over medium heat, stirring often, until it has reduced and is a thick syrup. This will take about 10 minutes.
  • The sauce will thicken as it cools so don’t over cook. If the sauce is too thick, add a spoon of water at a time till it is the consistency of thick syrup. 
  • Serve over shrimp ceviche, sushi, sashimi or any seafood or grilled meats.

Notes

Choose the right soy sauce: When making eel sauce, opt for low-sodium and gluten-free soy sauce if possible. This allows you to control the saltiness of the sauce and makes it suitable for those with dietary restrictions.
Don’t overcook: When reducing the sauce in the saucepan, be careful not to overcook it. The sauce will thicken as it cools, so if it becomes too thick, you can add a bit of water to achieve the desired consistency.
Stir often: While cooking the ingredients in the saucepan, make sure to stir often. This helps to evenly combine the flavors and prevents the sauce from sticking to the bottom of the pan.

Nutrition

Calories: 22kcal | Carbohydrates: 5g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Sodium: 369mg | Potassium: 12mg | Fiber: 1g | Sugar: 4g | Calcium: 1mg | Iron: 1mg
Like this recipe? Rate and comment below!

Making homemade eel sauce (unagi sauce) is a fast and easy way to elevate your favorite dishes with bold, umami-rich flavor. Whether you’re pouring it over sushi, shrimp or grilled vegetables, this sauce adds a perfect sweet and savory balance. With only a few pantry staples and a single saucepan, you’ll have a thick, glossy sauce that tastes just like the restaurant version. Try it once, and you’ll want to keep a jar in your fridge all the time.

Other Recipes to Try

Bella Bucchiotti

Bella Bucchiotti is a Canadian-based syndicated food, travel, and lifestyle writer, photographer, and creator at xoxoBella. She founded xoxoBella in 2015, where she shares her love for food, dogs, sustainability, fitness, crafts, outdoor adventures, travel, and philanthropy to encourage others to run the extra mile, try new recipes, visit unfamiliar places, and stand for a cause. Bella creates stress-free and family-friendly recipes for weeknight dinners and festive feasts.

 

You Might Also Like

Leave a comment

Your email address will not be published. Required fields are marked *

Recipe Rating




5 from 7 votes (2 ratings without comment)

6 Comments

  1. Fascinating. I totally had no idea that eel sauce does not contain any eel. I do love it but have never thought of making it at home. Thanks for sharing this delicious recipe.

  2. 5 stars
    I am so pinning this recipe I have looked for a good eel sauce recipe before, so this is a great find!

  3. 5 stars
    You had me at UNAGI!!! Yum yum yummmmm i love that sauce so much, gonna try this, thank you!!!