Step 1

In a large pot, bring 4 quarts water to a boil. Reserve ½ cup of the hot water. Add the pasta to the pot, then cook, stirring occasionally, until al dente. When the pasta is done, drain; set aside.

Step 2

While the pasta is cooking, in a small bowl, whisk together the peanut butter, soy sauce, oyster sauce, ½ teaspoon pepper and the reserved water.

Step 3

In a 12-inch skillet over medium-high, heat the oil until shimmering. Add the pork and cook, breaking the meat into little bits, until no longer pink, 1 to 1½ minutes. Add the garlic, vinegar and chili-garlic sauce. Cook, stirring constantly, until the pork is browned, about 1 minute. Stir in the peanut butter mixture, followed by the pasta. Cook, stirring and tossing with tongs, until the pasta is shiny and the sauce clings, 2 to 4 minutes.

Step 4

Off heat, taste and season with additional soy sauce and black pepper.