Maangchi

Bok Choy Tofu Doenjang Soup (Cheonggyeongchae dubu-doenjangguk: 청경채 두부된장국)

15 August 2026 · 10:49 watch

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Discover how to balance the earthy depth of Korean fermented soybean paste with the crisp freshness of bok choy and tender tofu in this classic, comforting soup.

Key takeaways

  • Doenjang provides an immediate umami backbone that requires minimal simmer time compared to Western stocks.
  • Add the bok choy late in the cooking process to preserve its vibrant green colour and signature crisp texture.
  • Tofu should be cubed uniformly to ensure even heating and consistent mouthfeel throughout the soup.
  • Strain the fermented paste into the broth to maintain a smooth, sediment-free liquid texture.

Korean cuisine is celebrated for its deep, comforting broths, and cheonggyeongchae dubu-doenjangguk (bok choy tofu fermented soybean paste soup) stands as a prime example of daily culinary art. Presented by Maangchi, this traditional dish highlights how everyday ingredients can be lifted through the smart application of fermented elements. For professional chefs, this soup offers an excellent study in balancing clean, green flavours with a rich, savoury broth backbone.\n\n## Mastering the Broth and Doenjang Balance\n\nThe foundational layer of any high-quality doenjangguk is its broth. While home cooks might use a simple anchovy and kelp stock, professional kitchens can experiment with clean vegetable broths or light dashi to align with dietary preferences. The star of the dish is doenjang, a Korean fermented soybean paste. Unlike Japanese miso, which is often whisked in at the very end of cooking to preserve delicate cultures, doenjang is robust and benefits from being boiled. It imparts a deep, earthy, and complex umami profile that serves as the canvas for the entire dish. Chefs should strain the paste into the simmering broth to ensure a smooth, debris-free liquid texture while retaining all the intense flavour.\n\n## Textural Harmony: Bok Choy and Tofu\n\nAchieving the perfect texture is the primary challenge when preparing this soup. Bok choy (cheonggyeongchae) brings a crisp, sweet contrast to the earthy base. It must be prepped carefully, ensuring that larger heads are halved or quartered lengthwise to cook evenly. The pitfall here is overcooking; the greens should be added near the end of the process so they wilt slightly but retain a satisfying bite and a vibrant green colour. Tofu (dubu) provides a soft, silken contrast. Standard medium or firm tofu should be cut into bite-sized cubes, allowing them to absorb the warm, savoury broth without disintegrating during service. This dish serves as an excellent, low-waste addition to a menu, warming the palate and setting a comforting tone for subsequent courses.\n\nFor service, timing is critical. Chefs should prepare the broth base in advance but hold the fresh greens and tofu back until order fire. This avoids the common issue of the bok choy turning grey and mushy. A final garnish of finely sliced spring onions or a touch of fresh chilli can lift the visual appeal, offering a bright pop of colour and a sharp contrast to the rich, golden hue of the soybean broth.

Questions from the pass

Frequently asked questions

How do you prevent bok choy from losing its vibrant colour?

Add the bok choy during the final minutes of cooking to prevent it from overcooking and losing its green hue. Rapidly boiling the greens just until they wilt ensures they retain their crisp texture and bright colour. If holding the soup for service, cook the greens separately and combine them at the pass.

Can Japanese miso be used instead of Korean doenjang?

You can use Japanese miso in a pinch, but the flavour profile will be notably different. Korean doenjang is unpasteurised, deeply fermented, saltier, and much funkier than typical miso. It also withstands prolonged boiling, whereas miso loses its delicate flavours when boiled, meaning it must be handled differently in the kitchen.

What variety of tofu is best suited for this soup?

Medium or firm tofu is best suited for this preparation as it holds its shape during cooking and service. Silken tofu is too fragile and will break apart in the boiling broth, whilst extra-firm tofu can feel too dense. Uniform bite-sized cubes ensure a consistent mouthfeel alongside the leafy bok choy.

Is this soup suitable for a vegan or vegetarian menu?

Yes, this soup can easily be made vegan or vegetarian depending on the stock base used. While traditional Korean recipes often utilise an anchovy and kelp stock, a clean vegetable broth or dried shiitake mushroom base pairs beautifully with the rich, earthy notes of the fermented doenjang paste.

Main ingredients

Original video by Maangchi. This overview is written independently by The Chef's Circle editorial desk — watch the original on YouTube.

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