Don't marinate too long. 2-4 hours is better. Pineapple juice is the secret ingredient!

Beef: skirt (preferably) or flank steak Marinade: 1 cup pineaple juice (good stuff) 1/2 cup (or less) soy sauce 4 fresh squeezed limes 1/4 cup fresh cilantro 1 jalapeno 1/3 cup onions 1/3 cup water Cumin Salt Pepper

Combine in ziplock bag and marinate 2-4 hours. Cook 2-3 minutes per side on hot grill. Let it rest for about 10 mins before cutting. Slice across the grain!