1 tablespoon Thai-style sweet chili sauce
Fresh cilantro sprigs, for garnish
To kill the crabs humanely, place them in the freezer for 2 hours.
Meanwhile, bring a large pot of water to a boil over high heat.
Transfer the crab pieces to a serving platter and spoon the sauce over them. Garnish with cilantro sprigs, and serve.
Once the crabs are no longer moving, plunge them into the boiling water for about 60 seconds or just until the shells begin to turn red. Remove the crabs from the water and set them on a baking sheet to cool.
Remove the legs and claws and lightly tap the body shell with the back of a knife to crack it. Remove the top shell from each crab body and clean the insides with your fingers. Using a large sharp knife, cut the main body of each crab into 4 pieces.