Beef Stir-Fry with Peanut Sauce

Step 1
Make sauce: Whisk together vinegar, soy sauce, peanut butter, peanut oil, chile sauce, and sesame oil in a medium bowl until smooth; set aside. Whisk together cold water and cornstarch in a small bowl until cornstarch is dissolved; set aside.

Step 2
Prepare stir-fry: Heat 1 tablespoon peanut oil in a large skillet over medium-high heat until smoking. Cook and stir beef in hot oil until browned, about 3 minutes. Remove beef with a slotted spoon to a plate lined with paper towels.

Step 3
Add remaining 1 tablespoon peanut oil to drippings in the skillet and heat until near smoking. Cook and stir carrots, bell pepper, mushrooms, broccoli, green onions, ginger, and garlic in hot oil-drippings until vegetables are tender, about 4 minutes.

Step 4
Return beef to the skillet and clear a space in the center. Reduce heat to medium-low. Pour vinegar mixture and cornstarch mixture into the cleared space; stir together for a few seconds, then toss with vegetables and beef. Cover and cook until sauce thickens and coats beef-vegetable mixture, about 5 minutes.