Spicy Ruby Grapefruit Marinade
This marinade is ideal for beef, (such as steaks, brochettes, or tougher cuts like flank or skirt steak,) shrimp, or lobster. Just cover your choice of protein in the marinade, and stir to coat evenly. Leave it in the fridge for at least two hours, and up to eight hours overnight. Stir once or twice during that period for evenly distributed flavor.