Wash the beef meat 2 times with vinegar, then squeeze the beef meat very well.
Put beef meat in a large bowl, then season it with soy sauce, vinegar, salt, ground black pepper, brown sugar, and coke. Mix well.
Add the garlic and mix it again.
Cover the bowl then refrigerate it for 24 hours.
After 24 hours, heat oil in a pan, and fry the seasoned beef meat.
Occasionally stir the meat. After 8 minutes, serve hot and enjoy!