Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   2      cups          red wine
   1      can           beer
   1      small         red onion -- sliced
     1/2  teaspoon      sea salt
     1/4  teaspoon      black pepper
     1/4  teaspoon      red pepper flakes
     1/8  teaspoon      ground cumin
   6                    fresh limes -- squeezed for the
                        -- juice, up to 8
     1/2  bunch         fresh cilantro -- chopped

Preparation:

Mix all and marinade meat in this at least overnight and as long as up to 3 days. Works great for fajitas. Can use a little of the lime rind too if desired. For more heat add 2-3 seeded and chopped jalapenos.