Can of coke, couple tablespoons of soy sauce, teaspoon of sesame oil. Good dose of chopped garlic but go by your taste. I would typically use a couple tablespoons. Finally a teaspoon or so of coarse black pepper. I use this on most any lean red meat. Really like it on goose breasts. You can marinate anywhere from a couple hours to overnight. Longer will get the meat more tender. Surprisingly no matter how long I have let this marinate flavor always seems about the same. Never gets overly sweet.

After I marinate I dry off the meat and scrape off any garlic. I lightly salt and generously pepper. Then grill hot and fast. If you want to really take things sweet a quick brush with a bottled char sui sauce a minute or so before taking off the grill. I like to go sweet with pork and goose. Anything else I leave plain. Char sui is a real sweet thick chinese bbq type sauce. Fairly common in most stores by the asian foods.