3tablespoonsdry sherrydivided, or cider vinegar, or white vinegar
1poundsirloin steakthinly sliced against the grain into 1/4-inch thick slices (I used two 8-ounce steaks)
1/3cupbeef broth
2teaspoonsfreshly ground black pepper
1tablespoongranulated sugar
2teaspoonssesame oil
2tablespoonsvegetable oildivided
3bell peppersany color or a variety of colors, seeded and chopped into bite-size pieces
1medium onioncut into bite-size pieces
2clovesgarlicminced
For Serving
Cooked rice
Chopped green onions
Instructions
In a large bowl, whisk together 1 tablespoon of the cornstarch, 1 tablespoon of the soy sauce, and 1 tablespoon of the sherry. Add the steak slices and stir to coat. Marinate at room temperature for 15 to 20 minutes.
In a small bowl, whisk together the remaining cornstarch, remaining soy sauce, remaining sherry, beef broth, black pepper, sugar, and sesame oil. Set aside.
Heat 1 tablespoon of the vegetable oil in a wok or large skillet over medium-high heat. Add the steak to the hot oil and sear on all sides. Remove the steak from the pan and set aside.
Add the remaining vegetable oil to the pan and set the pan over medium-high heat. Add the bell peppers and onion and cook for 3 to 5 minutes, until the vegetables soften. Add the garlic and cook for 30 seconds.
Add the beef broth mixture and bring to a simmer. Cook for 1 to 2 minutes, until the sauce thickens and forms a glaze. Return the steak to the pan with any accumulated juices from the plate. Toss to combine and cook for 1 minute to heat through.
Serve the steak and vegetables over rice and top with green onions (if using).