To most North Americans barbecue sauce is some variation on a combination of ketchup, brown sugar, and vinegar, but on any given day on Planet Barbecue probably far more people are dipping grilled meats in peanut sauce. The basic formula starts with deep-fried peanuts or peanut butter and the flavorings typically include garlic and ginger for pungency, sugar for sweetness, and fish sauce or soy sauce for saltiness. The peanut-sauce belt begins in Indonesia (its probable birthplace) and extends through Singapore, Thailand, and Malaysia, all the way to Hong Kong. The Singaporean version owes its fragrance to fresh lemongrass and ginger. Dried shrimp are available in Asian and Hispanic markets. Fish sauce isn't a bad substitute, although you can omit it and still wind up with a killer sauce. The addition of fried garlic chips is very characteristic of Southeast Asia.
Chill in a shaker, strain into a glass laced with Pernod or Herbsaint (originally absinthe), garnish with a lemon twist.