How to Make It
In a food processor, combine the garlic, chiles, lemongrass, shallot and ginger and process to a paste. Scrape the paste into a bowl and stir in the fish sauce, sugar, lime juice, cilantro, coriander and pepper.
Light a grill. Coat the shrimp with 2/3 cup of the marinade and let sit for 15 minutes. Thread the shrimp onto skewers and cook over a hot fire for about 2 minutes per side, using the remaining marinade for basting.