posted by Nancy K 06-11-98 8:41 AM Southwestern Tri Tip Marinade 2 cups red wine 1 can of beer ( can be non-alcoholic) 1 small red onion, sliced 1/2 tsp sea salt 1/4 tsp black pepper 1/4 tsp red pepper flakes 1/8 tsp ground cumin 6-8 fresh limes, squeezed for the juice 1/2 bunch fresh cilantro,chopped Mix all and marinade meat in this at least overnight and as long as up to 3 days. Can use a little of the lime rind too if desired. For more heat add 2-3 seeded and chopped jalapenos.