1-1/2 pounds beef top sirloin steak, cut into 1/4-inch-thick strips
1 cup beef broth
2 tablespoons soy sauce
4 teaspoons sugar
2 teaspoons grated orange zest
6 teaspoons canola oil, divided
2 medium carrots, diagonally cut into thin slices
1 tablespoon minced fresh gingerroot
2 garlic cloves, minced
1/2 teaspoon crushed red pepper flakes, optional
Hot cooked rice
Mix 1 tablespoon cornstarch, water and salt; toss with beef. In a small bowl, mix broth, soy sauce, sugar, orange zest and remaining cornstarch until smooth.
In a large skillet, heat 2 teaspoons oil over medium-high heat; stir-fry half of the beef until browned, 2-3 minutes. Remove from pan. Repeat with additional 2 teaspoons oil and remaining beef.
Stir-fry carrots in remaining oil 2 minutes. Add ginger, garlic and, if desired, pepper flakes; cook and stir until fragrant, about 30 seconds. Stir broth mixture and add to pan; bring to a boil. Cook and stir until slightly thickened. Stir in beef; heat through. Serve with rice.