Step 1In a large bowl, stir together the chili sauce, mayonnaise, lemon juice, Worcestershire sauce, garlic, cilantro, cayenne pepper, salt and ground pepper to taste.
Step 2Cover tightly and refrigerate. This is best made in advance to allow the flavors to blend. (Makes one-third cup.)
Step 1Bring the stock, wine, onion, bay leaves, garlic, chile flakes, pepper and salt to a boil, then reduce the heat to a simmer. Add the shrimp and cook at a fast simmer until they are bright orange and firm, 4 to 5 minutes. Drain and chill thoroughly.
Step 2To serve, arrange the shrimp on a platter, with a bowl of the sauce in the center and lemon wedges arranged around the outside so that diners may peel and dip the shrimp.