I use flap meat to make grilled carne asada. I make a marinade from juice of 2 lemons, juice 4 limes, 1-2 jalapenos chopped, bunch green onions chopped, 2 cloves garlic chopped,hot sauce, about 1/4 cup steak sauce.
Marinade for at least 2 hours. Cook fast over high heat and get good sear...