Blend all the marinade ingredients in a basin. Combine with beef, then marinate for two hours at least
Light the grill or heat it to high. Grill the steak over the coals until it's medium-rare (3 to 4 minutes per side). Ten minutes should pass before slicing.
The palm sugar and tamarind should be mixed and warmed in a shallow bowl over a pan of half-filled water. In a medium bowl, combine the remaining salad ingredients and stir in tamarind mixture.
Check the seasoning and toss the sliced beef with the salad ingredients. The flavor ought to be savory, tart, and hot. Serving with raw white cabbage wedge