Asahi Grill Oxtail Soup Recipe: Richly Braised Japanese Comfort

This braised oxtail soup delivers deep comfort in every spoonful. The slow cooking process transforms tough cuts into fall-off-the-bone tenderness.

Rich broth and traditional seasonings create a savory base that warms from within. This dish proves that patience in the kitchen always pays off.

Ingredients for Asahi Grill Oxtail Soup

Transform simple ingredients into a luxurious bowl of deeply savory comfort.

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The oxtail is non-negotiable here—ask your butcher to cut it into 2-inch pieces (most will do this for free). Look for pieces with good marbling and some meat on the bone. Whole Foods or Asian markets typically have the best selection. Dashi stock forms the backbone of this soup; instant dashi granules work in a pinch, but homemade is superior.

No dashi? Beef stock with a splash of soy gets you close. Mirin can be swapped for 1 tbsp sugar + 3 tbsp water, though the depth won’t be identical. Sake is ideal, but dry white wine works. If you can’t find oxtail, beef short ribs offer a similar richness, though the texture will differ slightly.

This soup improves overnight—3-4 days in the fridge, 3 months frozen. Skim the fat after chilling for a cleaner finish. The flavors meld and deepen with time, making it perfect for batch cooking.

Step-by-Step Instructions for Oxtail Soup

Master this technique and you’ll produce a deeply flavorful, comforting soup with fall-off-the-bone meat.

Step 1: Sear the Oxtail for Depth of Flavor

Heat the 2 tbsp vegetable oil in a large, heavy-bottomed pot over medium-high heat. Pat the 2.5 lb oxtail pieces dry with paper towels to ensure a proper sear. Working in batches to avoid crowding, add the oxtail and sear on all sides for 8-10 minutes until deeply browned.

You’ll know it’s ready when the meat releases easily from the pot and develops a rich, caramelized crust. This step builds the foundation of flavor, so don’t rush it. Transfer the seared oxtail to a plate and set aside.

Step 2: Sauté the Aromatics Until Fragrant

In the same pot, add the 1 whole yellow onion, 2 whole carrots, and 2 whole celery stalks. Cook over medium heat for 5-7 minutes, stirring occasionally, until the vegetables begin to soften and the onions turn translucent.

Stir in the 6 cloves garlic cloves and 2 tbsp fresh ginger, cooking for an additional 1-2 minutes until fragrant. Be careful not to burn the garlic, as it can turn bitter quickly. The mixture should smell rich and aromatic, signaling that the base is ready for the next step.

Step 3: Deglaze and Simmer for Richness

Pour in the 0.25 cup sake and scrape the bottom of the pot with a wooden spoon to release the browned bits. Add the 0.5 cup low-sodium soy sauce, 0.25 cup mirin, 2 tbsp light brown sugar, 2 whole bay leaves, 1.5 tsp kosher salt, and 1 tsp black peppercorns. Stir to combine.

Return the oxtail to the pot and pour in the 8 cups dashi stock. Bring the mixture to a boil, then reduce the heat to low. Cover and simmer gently for 3-4 hours, stirring occasionally, until the oxtail is tender and nearly falling off the bone.

Step 4: Skim and Adjust Seasoning

As the soup simmers, skim off any foam or impurities that rise to the surface with a fine-mesh skimmer or a spoon. This ensures a clean, clear broth. Taste the broth periodically and adjust the seasoning with additional kosher salt if needed.

Once the oxtail is tender, remove the pieces and shred the meat from the bones, discarding any excess fat or connective tissue. Return the shredded meat to the pot and stir to combine. The soup should have a rich, savory depth with a balance of sweetness from the mirin and sugar.

Step 5: Serve Warm and Garnish

Remove the bay leaves before serving. Ladle the soup into bowls, ensuring each portion has a generous amount of oxtail and vegetables. The broth should be deep, rich, and aromatic, with the meat falling apart at the touch of a spoon.

This soup is best enjoyed fresh but tastes even better the next day as the flavors continue to meld. Serve with steamed rice or crusty bread to soak up the delicious broth.

Regional Styles of These Flavors

Tokyo Asahi Style

In Japan, Asahi Grill versions often include shitake mushrooms and daikon radish for earthy depth. I add 4 dried shitake and 1 cup daikon chunks during the final 30 minutes of simmering. The mushrooms rehydrate beautifully in the rich broth. 🗺️

Osaka Street Food

Osaka street vendors serve this with udon noodles right in the bowl. Add 8 oz fresh udon during the last 10 minutes of cooking. The noodles soak up the incredible broth like a sponge. I learned this trick at a tiny stall near Dotonbori.

Hokkaido Hearty

Northern Japan makes it even richer with miso paste. Whisk 2 tbsp white miso into the broth at the end. This adds a fermented complexity that cuts through the fat. Perfect for those brutal Hokkaido winters I’ve read about.

Kyoto Refined

Kyoto chefs garnish with yuzu zest and thin-sliced scallions. The citrus brightens the deep flavors. I use 1 tsp yuzu zest and 3 chopped scallions per bowl. It’s like sunshine on a cloudy day.

Nagoya Spiced

Nagoya versions often include seven-spice blend. Stir in ½ tsp shichimi togarashi at serving. The warmth complements the rich broth perfectly. I keep a tin of this in my spice cabinet just for this purpose.

Frequently Asked Questions