Crab with Tamarind and Chili (Cua Rang Me)

lbs (2 kg) fresh crabs (about 3 pcs), placed in freezer for 30 minutes

Oil, for frying

egg

tamarind juice

oyster sauce

sesame oil

sugar

garlic, finely chopped

small onion, halved lengthwise and cut into thin wedges

fresh small red chili, finely chopped

(10-15 g) saw tooth herb, finely chopped

(10-15 g) rice paddy herb, finely chopped

Steamed rice, to serve