Bacalao al pil-pil is a traditional dish from the Basque Country in Spain, featuring salted cod as the main ingredient. The dish is known for its rich, flavorful sauce made from olive oil, garlic, and chili peppers. The name "pil-pil" refers to the sound made during the cooking process, where the oil emulsifies with the fish's gelatin, creating a creamy texture. To prepare bacalao al pil-pil, the salted cod is first soaked to remove excess salt, then cooked gently in olive oil. The dish is often served with a garnish of fresh parsley and is enjoyed for its unique combination of flavors and textures, making it a beloved staple in Basque cuisine.