Mexican Marinade2 garlic cloves, peeled 1/4 teaspoon black peppercorns 1/4 cup white vinegar 3 tablespoons vegetable oil Pinch of ground cumin seeds 1/4 teaspoon dried oregano Salt to taste In a blender, grind all ingredients. Rub raw meat with this marinade. Cover with plastic wrap and chill for at least three hours before cooking. Cook as desired.