Heat oil in wok over high heat. Add garlic and sauté for 10 seconds, then add beef and cook until sealed and browned on the outside but not yet cooked through, about 1 minute.
Add the Sauce and water and cook for 30 seconds to 1 minute until sauce is thickened.
Add the snow peas and stir fry for 30 seconds just to warm through the snow peas and coat with the sauce (they should be crisp, they will continue to cook off the stove). Remove from stove and serve immediately.