This recipe blends the meatiness of Sichuan dan dan mian with the simplicity of peanut noodles. We rely on a few heavy-hitting pantry staples to create a flavorful dish that comes together easily. Peanut butter, soy sauce and oyster sauce (or hoisin) provide saltiness, sweetness and umami along with a creamy texture. A touch of vinegar balances the richness. Balsamic, with its sweet-tart flavor, makes a good stand-in for the more traditional Chinese black vinegar. The noodles also are delicious topped with a fried egg.