Light, tangy, and cooked with a modest amount of heat and any available seafood and fresh vegetables, kaeng som is an elemental and satisfying dish, and this curry from Pok Pok’s Andy Ricker is an easy recipe to master. Learn to make the shrimp-enriched broth, which leads with tart, pungent flavors but also delivers measured amounts of sweetness, salt, and spice, and you’ll begin to understand the balance in Thai cooking. Get the recipe for Sour Curry Soup with Shrimp »