Garlic Choy Sum
Wok-Tossed Choy Sum with Aromatic Garlic
The blanch-then-stir-fry technique keeps these Chinese greens vibrant while the garlic-laden sauce coats every stem. This is how to get restaurant-quality results at home — bold flavor without any bitterness.
Choy sum might be the most underestimated green in the produce aisle. While kale gets all the health headlines and spinach dominates the salad game, this Chinese flowering cabbage delivers everything you want from a vegetable: sweetness without bitterness, tender leaves that don't turn to mush, and thick stems that stay crisp even after cooking.
The technique here — blanching first, then stir-frying — is what separates restaurant-quality Chinese greens from the soggy disappointments most home cooks accidentally create. That initial dip in boiling water locks in the bright color and starts the cooking process gently, while the high-heat wok finish adds the smoky depth that only comes from proper stir-frying. The cornstarch-thickened sauce isn't just flavor — it's insurance that every piece gets coated and nothing slides off onto the plate.
This isn't a dish that needs a lot of ingredients to shine. Good choy sum tastes like spring itself, with just enough mineral earthiness to remind you it's actually nutritious. The garlic here isn't meant to overpower that natural sweetness — it's there to amplify it, the way a good supporting actor makes the lead look even better.
Ingredients
- ¼ tspground white pepper
- 1 tspsoy sauce, light or regular
- ⅛ tspfine salt
- 2 tspcornstarch
- 1 tsptoasted sesame oil
- 2 tbspcold water
- 6 clovegarlic cloves, finely minced
- 1 lbchoy sum, cleaned and chopped into 2-inch pieces
- 2 tbspneutral vegetable oil for stir-frying
Instructions
- Make the sauce by whisking together white pepper, soy sauce, salt, cornstarch, sesame oil, and water in a small bowl until no cornstarch lumps remain. Fold in the minced garlic and set aside where you can grab it quickly during cooking.
- Get a large pot of salted water rolling at a vigorous boil. Drop in the choy sum and cook just until the leaves turn brilliant green and the stems start to soften — they'll finish cooking in the wok.⏱ 40 sec
- Drain the choy sum thoroughly in a colander, shaking off excess water. Pat dry with paper towels if needed — water droplets will cause dangerous splattering in the hot oil.
- Heat your wok or largest skillet over high heat until wisps of smoke appear, then swirl in the vegetable oil. Add the drained choy sum immediately and toss constantly with a spatula to coat with oil. Season lightly with salt as you go.⏱ 2 min
- Create a well by pushing all the choy sum up the sides of the wok. Give your sauce mixture a quick stir to redistribute the cornstarch, then pour it into the cleared center. Let it bubble and thicken for 10 seconds, then toss everything together until the greens are glossy and coated. Taste and adjust salt, then serve right away.
Tips & Tricks
- Choose choy sum with bright yellow flowers still tightly closed — once they open fully, the stems can turn fibrous and bitter.
- Don't skip patting the blanched greens dry; even small water droplets will cause violent oil splatter when they hit the hot wok.
- The sauce will look thin when you mix it, but the cornstarch activates fast once it hits the heat — don't double the amount thinking it's not enough.
- If your wok isn't large enough to toss everything easily, work in two batches rather than crowding the pan and steaming the greens.
- Leftover choy sum reheats beautifully when tossed in a hot pan with just a splash of water to create steam.
Frequently Asked Questions
Can I use baby bok choy instead of choy sum?
Baby bok choy works well with the same technique, though it has a slightly more mineral flavor and thicker stems. Increase the blanching time by 30 seconds to soften those stems properly.
What if I don't have a wok?
Your largest skillet will work fine — just make sure it's big enough to toss the greens without spilling. Cast iron or stainless steel both get hot enough to create that signature stir-fry flavor.
How do I know when the choy sum is properly blanched?
The leaves should turn from dull to brilliant green and the stems should give slightly when pressed with tongs, but still have some firmness. This usually takes 1-2 minutes depending on thickness.
Can this be made ahead?
This dish is best served immediately after cooking, but you can blanch the choy sum up to 4 hours ahead and store it covered in the refrigerator. Just make sure it's completely dry before stir-frying.