Pork and Green Bean Stir Fry

Ingredients

1 (about 3/4 pound) pork tenderloin, trimmed of excess fat
Coarse salt
2 tablespoons soy sauce
1 tablespoon rice vinegar
1 teaspoon sugar
1 teaspoon cornstarch
3 teaspoons vegetable oil
2 tablespoons minced, peeled peeled fresh ginger
1/8 to 1/4 teaspoon red-pepper flakes
1 pound green beans, trimmed and cut crosswise into 2-inch pieces
1 red bell pepper, ribs and seeds removed, cut into thin strips
1/3 cup dry-roasted peanuts, chopped
Cooked white rice, for serving (optional)

Directions

Cut pork diagonally into 1/4-inch thick slices; cut each slice lengthwise in half. Season with 1/2 teaspoon salt. In a small bowl, mix soy sauce, vinegar, sugar, and cornstarch; set sauce aside.

Heat 1 teaspoon oil in a large skillet over medium-high. Add half the ginger, pepper flakes, and pork; cook, stirring, until pork is no longer pink, about 3 minutes. Transfer to a plate. Repeat, cooking remaining ginger, pepper flakes, and pork in another teaspoon oil; transfer to plate.

Meanwhile, cook green beans in a medium pot of boiling salted water until crisp-tender, about 4 minutes. Drain; dry with paper towels.

Add remaining teaspoon oil to the skillet. Add beans, bell pepper, and 2 tablespoons water; cook over high heat, stirring often, until peppers are tender, about 2 minutes.

Add peanuts, pork mixture, and reserved sauce. Cook, stirring, until pork is coated, about 1 minute. Serve immediately, over rice, if desired.