Chinese Charred Bok Choy and Oyster Sauce Dip
A silky, umami-rich dip built on charred bok choy blended with oyster sauce, ginger, and sesame. The greens caramelize in a hot skillet until their edges blacken and turn sweet, then are pureed with garlic oil and a splash of black vinegar for depth. Serve warm or at room temperature with crudités, dumpling wrappers, or toasted bread.
- Prep
- 10 min
- Cook
- 12 min
- Total
- 22 min
- Makes
- 1½ cups (360 ml) dip; 8–10 servings as an appetizer
Steps
Before you start
- Pat bok choy dry after rinsing so it chars, not steams
- Have all ingredients measured and ready to blend
- Choose a heavy-bottomed skillet or cast iron for even charring
Char the bok choy
- Place the 12-inch skillet over medium-high heat for 2 minutes until very hot.
- Add 2 tablespoons of neutral oil and let it shimmer.
- Working in batches if needed, place bok choy halves cut-side down in the dry pan.
- Let them sit undisturbed for 3–4 minutes until the cut surfaces are deeply browned and blackened at the edges.
- Flip and char the rounded sides for 1–2 minutes more.
- Transfer to a cutting board.
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Ready when: Cut sides are golden-brown to charcoal black with slightly wilted leaves
Tip: Don't move the bok choy once it hits the pan; this allows the flat surface to caramelize deeply and develop the char flavor that defines the dip.
Infuse the aromatics
- Add 1.5 tablespoons of sesame oil to the same skillet (turn heat to medium).
- Add minced garlic and ginger, stirring constantly for 45–60 seconds until fragrant but not browned.
- The oil should perfume the kitchen without burning the aromatics.
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Ready when: Garlic and ginger smell sweet and aromatic, just starting to turn light golden
Tip: Keep the heat at medium so the sesame oil infuses without smoking; high heat will make the oil taste acrid.
Chop and blend the dip
- Roughly chop the cooled bok choy into 2-inch pieces.
- Transfer the ginger-garlic oil to a food processor or blender along with the oyster sauce (2.5 tablespoons), black vinegar (1 tablespoon), soy sauce (0.5 tablespoon), and the chopped bok choy.
- Blend until silky and well combined, 1–2 minutes.
- If the mixture is too thick, add 2–3 tablespoons of water, 1 tablespoon at a time, until you reach a creamy dip consistency.
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Ready when: Smooth, creamy, and uniform in color with no chunky vegetable pieces visible
Tip: Add water gradually; the dip will thicken slightly as it cools, so err on the side of slightly looser consistency while blending.
Finish and serve
- Transfer the dip to a serving bowl.
- Top with toasted sesame seeds and sliced scallion (if using).
- Drizzle lightly with sesame oil if desired, and finish with a pinch of chili flake or ground Sichuan peppercorn for heat, if you like.
- Serve warm or at room temperature with crudités (carrots, celery, cucumber), dumpling wrappers, or toasted bread.
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Tip: Toast the sesame seeds dry in a skillet for 1–2 minutes before serving to unlock their nutty flavor, or buy them pre-toasted if short on time.
Good to know
Tips
- The key to this dip is the char: don't skip it or rush it. Deep browning and blackening on the bok choy creates sweetness and depth that simple boiled greens cannot match.
- Oyster sauce is deeply umami and salty; taste the dip before serving and adjust vinegar or soy sauce if it tastes too funky or one-note.
- Sesame oil is potent and burns easily. Use it for infusing aromatics, not high-heat cooking. If you prefer a milder sesame flavor, reduce it to 1 tablespoon.
- This dip is excellent as a condiment for roasted chicken, grilled fish, or steamed dumplings, not just as a vegetable dip.
Make ahead
Blend the dip up to 1 day ahead; store in an airtight container in the refrigerator. Reheat gently in a small saucepan over medium-low heat, stirring occasionally, or serve cold. Top with fresh sesame seeds and scallions just before serving.
Storage & reheating
Room temperature: up to 2 hours. Refrigerator: up to 4 days in an airtight container. Freezer: up to 3 months; thaw in the refrigerator and reheat gently before serving. Do not microwave, as the dip may separate.
Substitutions
- black rice vinegar or balsamic vinegar → rice vinegar or red wine vinegar. Rice vinegar is milder and brighter; use the full 1 tablespoon. Red wine vinegar is more assertive; use ½–¾ tablespoon and adjust to taste.
- oyster sauce → soy sauce or tamari. Increase soy sauce to 1.5 tablespoons total and add 1 tablespoon hoisin sauce to retain umami and body. The dip will be thinner and less rich.
- bok choy (about 4 medium heads) → gai lan (Chinese broccoli) or spinach. Gai lan will have a slightly bitter, peppery character; spinach will be milder and less charred. Follow the same charring method.
- sesame seeds (white or mixed) → chopped roasted peanuts or toasted pine nuts. Adds texture and different flavor; use the same amount by weight for a similar textural finish.
