The Best Bok Choy Stir-Fried Beef Dish You’ll Ever Try

Ingredients

• 454 g (1 lb)lean flank steak, trimmed of fat and thinly sliced
• 950 ml (4 cups)baby bok choy, chopped, stems and leaves separated
• 1 mediumred bell pepper, sliced
• 3 clovesgarlic, minced
• 15 ml (1 tbsp)fresh ginger, grated
• 60 ml (1/4 cup)low-sodium soy sauce (or tamari for gluten-free)
• 15 ml (1 tbsp)rice vinegar
• 5 ml (1 tsp)sesame oil
• 5 ml (1 tsp)cornstarch (or arrowroot powder)
• 120 ml (1/2 cup)water
• 15 ml (1 tbsp)hoisin sauce, optional (+1 point)
• 5 ml (1 tsp)sriracha, optional, for heat
• As neededcooking spray

Instructions

1. 1

   Marinate the steak

   In a bowl, combine the soy sauce, rice vinegar, sesame oil and cornstarch. Add the sliced steak and leave it to marinate for 30 minutes.

2. 2

   Stir-fry the beef

   Heat a large pan over high heat and coat it with cooking spray. Add the garlic and ginger, then add the marinated steak and stir-fry until browned.

3. 3

   Add the vegetables

   Add the bok choy stems, red bell pepper and bok choy leaves. Stir-fry until the vegetables are tender-crisp.

4. 4

   Thicken the sauce

   Add the water, hoisin sauce and sriracha. Cook until the sauce thickens, then serve hot.

What is bok choy stir-fried beef?

This is a Chinese-inspired style of stir-fry: thin strips of beef and vegetables are cooked quickly over high heat, then coated in a savoury sauce. Bok choy, a leafy member of the cabbage family widely used in East Asian cooking, brings both crunchy stems and tender leaves.

Here, flank steak cooks with red pepper, ginger and garlic, while soy sauce, rice vinegar and sesame oil season the meat. Separating the bok choy stems from the leaves helps the firmer parts get a head start before the leaves go into the pan.

Nutrition and macros by portion

The nutrition label shows one serving as written: 250 calories, 20g protein, 15g carbs, 10g fat.

The steak supplies most of the protein, while the red pepper and bok choy contribute some carbohydrates. The sesame oil and steak contribute fat, and the soy-based sauce adds sodium. Serve with a moderate portion of rice and extra vegetables if you want to balance the plate with more fibre-rich foods.

Choose and slice the beef

Flank steak: Trim away visible fat and slice the meat thinly. Cutting across the grain helps keep the cooked strips easier to bite through.

Even pieces: Aim for similarly sized slices so they brown at roughly the same pace. Keep the marinating beef ready to add once the aromatics are fragrant.

Build flavour in the pan

Ginger and garlic: These go into the hot pan before the beef, so have them minced and grated in advance. Watch them closely as they can brown quickly over high heat.

Hot pan: A large pan gives the steak room to make contact with the cooking surface. If it is crowded, the meat is more likely to release liquid and steam rather than brown.

Keep the bok choy crisp

Stems first: The stems are firmer than the leaves, which is why the method adds them before the leaves. Add the pepper at the same stage as the stems.

Leaves last: Stir-fry just until the vegetables are tender-crisp. The leaves wilt quickly, so keep them moving and avoid cooking them until limp.

Get the sauce texture right

Cornstarch: It is mixed into the marinade and helps the finished sauce thicken when the water is added. Stir the sauce ingredients through the pan so they coat the beef and vegetables.

Doneness cue: The method calls for cooking until the sauce thickens. If it still looks thin, continue cooking and stirring briefly, keeping an eye on the vegetables.

Plan the timing

Marinating: The recipe specifies 30 minutes for the steak, so allow for that before cooking. Although the stated total time is 30 minutes, the marinade time alone is 30 minutes.

Ready to cook: Prepare the vegetables and aromatics while the steak marinates, then cook the stir-fry just before serving for the best crisp-tender texture.

What to serve with it

Rice: Serve the beef and bok choy over steamed rice to make a fuller meal and catch the sauce. Noodles are another straightforward accompaniment.

Fresh finish: A simple side of sliced cucumber or lightly dressed greens can add a cool contrast to the hot stir-fry. Serve the dish promptly while the vegetables retain some bite.

Recipe notes & tips

• Separate the bok choy stems and leaves before you start cooking.
• Slice the steak thinly across the grain for more tender bites.
• Mix the marinade ingredients thoroughly so the cornstarch is dispersed.
• Have the vegetables and aromatics prepared before heating the pan.
• Add the leaves after the stems so they do not overcook.
• Taste the sauce before serving and add sriracha only if you want extra heat.

Variations

• Gluten-free: Use tamari instead of soy sauce, as suggested in the ingredient list.
• More heat: Add the optional sriracha to the sauce, adjusting it to your taste.
• Skip the hoisin: Leave out the optional sauce for a simpler soy-and-vinegar finish.
• Extra vegetables: Add more bok choy while keeping the stems and leaves separate.
• Use arrowroot: Substitute arrowroot powder for the cornstarch as listed.

Common mistakes to avoid

• Crowded pan: The beef may steam instead of brown; use a large pan and avoid packing it tightly.
• Thick beef slices: They can cook unevenly; slice the steak thinly before marinating.
• Overcooked leaves: They wilt quickly; add them after the stems and cook only until tender-crisp.
• Burnt aromatics: Garlic and ginger can brown fast; keep them moving and add the beef promptly.
• Lumpy sauce: Cornstarch can clump if unevenly mixed; combine it well with the marinade ingredients.

How to store

Refrigerate leftovers in a sealed container and eat within 3 days. Reheat in a pan over medium heat until piping hot, stirring gently; the bok choy will be softer after reheating.

Frequently asked questions