1. Combine soy sauce and 1/2 teaspoon sugar in medium bowl. Add beef, toss well, and marinate for at least 10 minutes or up to 1 hour, stirring once. Meanwhile, whisk remaining sugar, sherry, broth, oyster sauce, and cornstarch in medium bowl. Combine garlic, ginger, and 1/2 teaspoon oil in small bowl.

2. Drain beef and discard liquid. Heat 1 teaspoon oil in 10-inch nonstick skillet over high heat until just smoking. Add beef in single layer, breaking up clumps. Cook, without stirring, for 1 minute, then stir and cook until browned, 1 to 2 minutes. Transfer beef to clean bowl. Rinse skillet and dry with paper towels.

3. Add remaining oil to now-empty skillet and heat until just smoking. Add snap peas and bell pepper; cook, stirring frequently, until vegetables begin to brown, 2 to 4 minutes. Add water and continue to cook until vegetables are crisp-tender, 1 to 2 minutes longer. Push vegetables to sides of skillet; add garlic-ginger mixture to clearing and cook, mashing with spatula, until fragrant, 15 to 20 seconds. Combine garlic-ginger mixture with vegetables. Return beef and any juices to skillet and stir to combine. Whisk sauce to recombine, then add to skillet; cook, stirring constantly, until thickened, about 30 seconds. Serve.

Serves 2 as a main dish with rice