Bo Xao Sa Ot
vietnamesebeefstir-fryricequickclassiclemongrass

Bo Xao Sa Ot

Bo Xao Sa Ot is a fast, deeply aromatic stir-fry of tender beef with lemongrass, garlic, shallot, and chili. The beef is savory, lightly sweet, and glossy from quick caramelisation, making it especially good spooned over hot jasmine rice.

30 min
2 servings
519 kcal
Vietnamese

Ingredients

Beef and marinade

  • 300 gbeef sirloin or rump, thinly sliced against the grain
  • 2 stalks (about 30 g)lemongrass, tender inner part only, very finely minced
  • 3 cloves (about 9 g)garlic, finely minced
  • 1 medium (about 35 g)shallot, finely minced
  • 1 smallred chili, thinly sliced
  • 20 mlfish sauce
  • 12 gpalm sugar
  • 10 mlneutral oil
  • 1/4 tspground black pepper

For stir-frying and serving

  • 10 mlneutral oil
  • 300 gcooked jasmine rice
  • 80 gcucumber, sliced
  • 1 stalk (about 15 g)spring onion, sliced

Instructions

  1. 1

    If not already cooked, prepare the jasmine rice first so it is hot for serving. Slice the beef as thinly as possible against the grain; partially freezing it for 10 minutes makes this easier. Mince the lemongrass, garlic, and shallot very finely so they melt into the stir-fry rather than burn in large pieces.

  2. 2

    In a bowl, combine the beef with the lemongrass, garlic, shallot, chili, fish sauce, palm sugar, 10 ml neutral oil, and black pepper. Toss well until the sugar starts dissolving and the beef is evenly coated. Let it stand for 10 minutes at room temperature while you prepare the cucumber and spring onion.

  3. 3

    Heat a wok or large frying pan over high heat until very hot. Add the remaining 10 ml neutral oil and swirl to coat. When the oil shimmers, add the marinated beef in a single layer as much as possible. Stir-fry for 2-4 minutes, tossing frequently, until the beef is just cooked and the shallot and sugar begin to caramelise around the edges. If the pan looks wet, keep cooking briefly until the liquid reduces to a glossy coating rather than a thin sauce.

  4. 4

    Turn off the heat and scatter over the spring onion. Taste and adjust only if needed; the dish should be savory, lightly sweet, fragrant with lemongrass, and gently spicy.

  5. 5

    Serve immediately with hot jasmine rice and sliced cucumber on the side. Spoon any caramelised pan juices over the rice.

Nutrition per serving

519 kcal
Calories
34g
Protein
39g
Carbs
23g
Fat
2g
Fiber

Notes

Background

Vietnamese lemongrass beef stir-fries are part of a broad family of fragrant, quickly cooked dishes that balance salty fish sauce, aromatic herbs, and a touch of sweetness. Variations are common across southern Vietnam, where lemongrass, chili, and caramelised savory flavors are especially popular in everyday home cooking.

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