1.
Cut pork into very thin strips and place in a bowl. Finely shred Chinese cabbage. Cut bamboo shoots into thin strips. Cut snow peas into strips. Add all vegetables to bowl.
2.
Finely chop ginger. Remove hard outer layers from lemon grass and finely chop tender part.
3.
To make vinaigrette, whisk vegetable oil, sesame oil, 2 tablespoons rice vinegar, soy sauce and sugar in a bowl. Add ginger and lemon grass; whisk to combine. Check seasoning, adding salt to taste. Stir vinaigrette into salad.
4.
Toast sesame seeds in a frying pan over medium heat until golden, stirring occasionally. Transfer to a plate; set aside to cool. Combine sour cream and sambal oelek.
5.
Taste salad, adding salt and remaining 1 tablespoon rice vinegar, if necessary. Spoon salad onto serving plates. Top with a little sour cream mixture. Sprinkle with sesame seeds and chives.
to prepare lemon grass
1 Remove outside woody layers from lemon grass and cut off root. 2 Trim woody ends from leaves. Wash lemon grass and pat dry with paper towel. 3 Cut tender leaves crosswise in fine strips or chop finely. Or, grind them to a fine paste.