01 - Combine beef with soy sauce, cornstarch, and sesame oil in a medium bowl. Toss well and let rest for 10 minutes.
02 - In a small bowl, mix all sauce ingredients until combined. Set aside.
03 - Heat 1 tbsp vegetable oil in a large wok or skillet over high heat. Add beef in a single layer and sear 1 to 2 minutes per side until browned. Remove and set aside.
04 - Add remaining 1 tbsp vegetable oil to the wok. Stir-fry garlic, ginger, and white parts of spring onions for 30 seconds until fragrant.
05 - Toss in carrots and stir-fry for 2 minutes. Add snow peas and cook 1 to 2 minutes until crisp-tender.
06 - Return beef to wok, pour in sauce, and stir-fry 1 to 2 minutes until sauce thickens slightly and beef is cooked through.
07 - Sprinkle green parts of spring onions over the dish and serve immediately, optionally with steamed rice.