Japanese-Style Wombok & Pork Miso Soup

This comforting Japanese soup showcases wombok in a supporting yet essential role—simmered in savory miso broth with tender pork until it becomes silky and sweet, absorbing the soup's complex flavors while contributing its own gentle character. Unlike kimchi or stir-fries where wombok provides crunch, here it softens into tender, almost melting texture that offers gentle substance without heaviness. The combination of wombok and pork is deeply traditional in Japanese cooking—the vegetables' sweetness balances pork's richness while its high water content keeps the soup light despite the meat. Miso paste provides fermented depth, umami intensity, and probiotic benefits, transforming simple ingredients into something profoundly satisfying. This style of soup—called tonjiru in Japanese—represents comfort food at its finest: nourishing, warming, balanced, and adaptable to whatever vegetables you have on hand. It's the kind of everyday home cooking that doesn't aim for sophistication but achieves something better: reliable deliciousness and genuine sustenance.
Japanese-Style Wombok & Pork Miso Soup
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  • Difficulty: Easy
  • Time: 35 minutes (10 min prep + 25 min cook time)

Ingredients

  • ¼ wombok (about 300g), core removed
  • 250g pork belly or shoulder, thinly sliced
  • 1 tbsp neutral cooking oil
  • 1 medium onion, sliced
  • 1 large carrot, cut into half-moons
  • 200g daikon radish, cut into half-moons (or substitute more carrot)
  • 2 medium potatoes, peeled and cut into chunks
  • 100g konnyaku or firm tofu, cut into cubes (optional but traditional)
  • 5 cups dashi stock (or chicken/vegetable stock)
  • 4 tbsp miso paste (red/aka miso for deeper flavor, white/shiro miso for milder)
  • 2 tbsp mirin
  • 1 tbsp soy sauce
  • 2 spring onions, thinly sliced
  • Optional: 1 tsp grated fresh ginger
  • Optional: shichimi togarashi (Japanese seven-spice) for serving

Method

Prepare all ingredients: Cut wombok into 3cm squares, keeping leafy parts and ribs together—they’ll cook evenly in the soup. If using pork belly, you might want to blanch it briefly in boiling water to remove excess fat, then drain and pat dry. Slice thinly across the grain. Having everything cut and ready streamlines the cooking process significantly.

Brown the pork: Heat oil in a large, heavy-bottomed pot or Dutch oven over medium-high heat. Add pork slices in a single layer (work in batches if necessary to avoid overcrowding). Cook for 2-3 minutes per side until lightly browned—you’re developing flavor through the Maillard reaction, not cooking through completely. The pork will finish cooking in the soup. Remove pork and set aside, leaving rendered fat in the pot.

Build the soup base: In the same pot with pork fat, add sliced onion and cook for 2-3 minutes, stirring occasionally, until softened and slightly translucent. The onion should absorb the pork flavors left in the pot. Add carrots, daikon, and potatoes, stirring to coat in the fat. Cook for 2 minutes, allowing vegetables to begin softening at the edges.

Add liquid and simmer: Return browned pork to the pot and add dashi stock. Bring to a boil over high heat, then immediately reduce to a gentle simmer. Skim any foam or impurities that rise to the surface—this creates cleaner-tasting broth. Add mirin and soy sauce. Simmer uncovered for 15 minutes until root vegetables are tender when pierced with a fork but not falling apart.

Add wombok strategically: Add wombok pieces to the simmering soup. The vegetables will seem like too much initially, but they’ll wilt dramatically as they cook. Gently push them down into the liquid. Continue simmering for 5-7 minutes until wombok is completely tender and almost translucent—you should be able to cut through it easily with a spoon. The leaves should be silky while ribs retain slight bite.

Add miso correctly: This step is crucial—miso should never boil, as high heat destroys beneficial enzymes and diminishes flavor. Turn off the heat. Place miso paste in a ladle or small bowl, add a few spoonfuls of hot broth, and whisk until completely smooth and dissolved. Pour this miso mixture back into the soup, stirring gently to distribute evenly. The soup should turn cloudy and aromatic.

Final adjustments: Taste and adjust seasoning. Depending on your miso’s saltiness, you might need more or less. Add grated ginger if using for warming spice. If konnyaku or tofu is being used, add it now and let it warm through for 1 minute—these ingredients need minimal cooking.

Serve with care: Ladle soup into deep bowls, ensuring each serving gets a good mix of pork, vegetables, and broth. Garnish with sliced spring onions for fresh onion bite and color contrast. Serve immediately while piping hot with steamed white rice on the side. Provide shichimi togarashi for those who want heat.

Perfect Pairings: This soup is substantial enough to be a complete meal when served with rice and perhaps a simple side like pickled vegetables or cucumber salad. It’s traditional Japanese home cooking—nourishing, balanced, and deeply satisfying without being fancy.

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