- 1/4 cup potato starch or cornstarch mixed with 1/2 cup water
- 1 teaspoon salt
- 2 lb pork spareribs, cut crosswise into 2-inch pieces by butcher
- 6 cups plus 2 tablespoons peanut oil
- 1 teaspoon dried hot red pepper flakes, coarsely ground in a spice grinder
- 1/2 tablespoon Chinese chile bean sauce or paste
- 3 dried Facing Heaven chiles (1-inch bell-shaped hot red chiles) or 3 (2-inch-long) dried hot red chiles
- 2 teaspoons Chinese rice wine (preferably Shaoxing) or medium-dry Sherry
- 2 teaspoons sesame seeds
- 1 teaspoon sugar
- 2 teaspoons Asian sesame oil
- 1 teaspoon chile oil containing sesame oil (such as Chiu Chow Chili Oil from Lee Kum Kee)
- Special equipment: a deep-fat thermometer
- Whisk together potato starch mixture and salt in a large bowl, then add ribs and toss to coat. Heat 6 cups peanut oil in a wok or 5-quart heavy saucepan over moderately high heat until it registers 280°F on thermometer. Transfer ribs to wok with a slotted spoon and fry until just beginning to color but not yet pale golden, about 5 minutes. Transfer to paper towels to drain.
- Heat same oil to 380°F and fry ribs again, until dark brown and crisp, about 5 minutes more, then transfer to clean paper towels to drain. Transfer hot oil to a large saucepan to cool before discarding.
- Add remaining 2 tablespoons peanut oil, red pepper flakes, and chile bean sauce to cold, cleaned wok, then stir-fry over high heat until fragrant, 2 to 2 1/2 minutes. Add ribs, whole chiles, wine, sesame seeds, and sugar, and continue stir-frying until chiles are fragrant, about 1 minute. Transfer ribs to a bowl and toss with sesame and chile oils.
- We prefer Eden brand sesame oil (available at natural foods stores), which is nutty and well balanced, as well as China Bowl, a supermarket brand, which is a little milder.