Spicy Korean Tofu
Seafood Stew (Sundubu-jjigae Style)

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A hearty, soul-warming Korean stew brimming with soft tofu, fresh clams, and kimchi in a vibrant, spice-forward broth that balances heat with briny depth.

↓ The ingredients ↓ The steps

This spicy tofu and seafood stew is the ultimate comfort food, blending the fermented tang of kimchi with the natural sweetness of fresh clams. While it leans on classic Korean flavors like gochujang and chili powder, it is a versatile, home-style dish designed to be both accessible and deeply satisfying. It is perfect for a cozy weeknight dinner, especially when you crave a bold, warming broth packed with textures.

A bubbling pot of vibrant red spicy tofu and seafood stew, topped with fresh green onions.
A bubbling pot of vibrant red spicy tofu and seafood stew, topped with fresh green onions.
Prep20 mins
Cook20 mins
Total40 mins
Yield2 servings
DifficultyEasy
Calories350 kcal

Ingredients

Instructions

  1. 1Purge the clams
    Clams soaking in a stainless steel bowl of water in a sink.

    Place the clams in a metal bowl filled with water, then add a pinch of salt, a drizzle of sesame oil, and a splash of cooking alcohol. Let them soak for about an hour to allow the clams to purge any sand from their shells.

    Tip: The addition of sesame oil and alcohol mimics their natural environment and encourages them to open up and release sand more quickly.
  2. 2Prepare the tofu
    A block of firm white tofu being sliced into cubes with a ceramic knife on a wooden board.

    Take a block of firm tofu and carefully cut it into uniform, bite-sized cubes on a cutting board.

    Tip: Firm tofu holds its shape better in stews, ensuring your stew doesnt become mushy during simmering.
  3. 3Slice the onion
    Red onion being sliced into thin strips on a wooden cutting surface.

    Take half an onion and slice it into thin, even strips on your cutting board.

    Tip: Slicing them thinly ensures they cook evenly and incorporate well into the base of the stew.
  4. 4Prepare the green chili
    Green chili peppers being sliced into rounds on a wooden board.

    Carefully slice the green chili peppers into thin rounds on the cutting board.

    Tip: Use gloves if you are sensitive to chili oils to avoid irritation, and adjust the amount based on your spice preference.
  5. 5Sauté the aromatics
    Garlic and onion slices sautéing in a metal pot with oil.

    Heat a mixture of sesame oil and vegetable oil in a pot over medium heat. Add the sliced garlic and red onions, stirring until they become fragrant and start to soften.

    Tip: Sautéing the aromatics in a combination of oils provides both a nutty flavor and a higher smoke point for even cooking.
  6. 6Stir-fry the kimchi
    Kimchi being added to a pot and stirred with sautéed onions.

    Add the kimchi to the pot with the sautéed onions and garlic. Stir-fry for a few minutes until the kimchi becomes fragrant and slightly tender.

    Tip: Stir-frying the kimchi helps to deepen its flavor and meld it with the aromatics before adding liquid.
  7. 7Add hot water
    Hot water being poured from a kettle into a pot containing sautéed kimchi and sliced onions.

    Pour hot water into the pot over the sautéed kimchi and onions. Using hot water helps maintain the cooking temperature and allows the flavors to meld more quickly.

    Tip: Hot water is preferred over cold to keep the pot at a simmer and save cooking time.
  8. 8Add fine chili powder
    A spoonful of bright red Korean fine chili powder being added into the simmering stew base.

    Add the Korean fine chili powder to the simmering broth. This provides a vibrant red color to the stew, which is characteristic of many Korean spicy soups.

    Tip: Fine chili powder dissolves well, ensuring an even, rich color throughout the broth.
  9. 9Add the tofu
    Cubed firm tofu being transferred from a small blue plate into the boiling stew.

    Gently add the cubed firm tofu into the simmering broth. Be careful not to break the cubes as they will absorb the flavors of the stew as they cook.

    Tip: Use firm tofu so it holds its shape well during the simmering process.
  10. 10Add gochujang
    A spoonful of thick red gochujang being stirred into the bubbling stew.

    Stir in a spoonful of Korean red chili paste (gochujang) to the stew. This adds a deep, savory, and slightly sweet spice profile that is essential for the stews complexity.

    Tip: Make sure to stir the gochujang well until it is fully dissolved into the broth.
  11. 11Add the clams
    Fresh cleaned clams being dropped into the boiling spicy seafood stew.

    Add the cleaned clams to the bubbling stew. The clams will add a natural brininess and sweetness that balances the spice of the kimchi and gochujang.

    Tip: Ensure the clams are fully cleaned before adding to prevent any sand in the stew.
  12. 12Garnish and serve
    Freshly chopped green onions being sprinkled over the top of the finished spicy tofu and seafood stew.

    Finally, garnish the stew with a generous handful of chopped green onions. The fresh crunch and mild onion flavor provide the perfect final touch before serving hot.

    Tip: Adding the green onions at the very last second keeps them bright and flavorful.

Storage & Reheating

Refrigerator
2 days
Store in an airtight container. Keep in mind that the tofu will continue to absorb the broth and may soften significantly.
Reheating
5–8 min
Gently reheat on the stovetop over medium heat. Avoid boiling aggressively to keep the tofu intact.

Burn It Off

Brisk Walking
~70 minutes at a moderate pace (~5 km/h).
House Cleaning
~85 minutes of active household chores.
Yoga
~1 hour and 45 minutes of mindful yoga practice.

Frequently Asked Questions

Yes, silken tofu is actually more traditional for this type of stew, but it is much more fragile. If you switch to silken, stir very gently to avoid turning the entire dish into a puree.
Soaking the clams in salted water with a little oil and alcohol mimics their natural environment, effectively encouraging them to purge any hidden sand from their shells before they hit your soup pot.
The alcohol helps neutralize any fishy odors from the seafood and adds a clean depth to the broth. If you prefer to omit it, a splash of rice vinegar or mirin can be used as a subtle alternative.
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