Cut the beef shank into bite-sized pieces.
Slice the garlic into thin pieces.
Add cooking oil to a pan and sauté the garlic to release its aroma.
Add the beef shank and stir-fry over high heat.
Season with salt and pepper.
Add soy sauce and sugar, and continue stir-frying until the meat is cooked through.
Add green onions and stir-fry once more to finish.