Here is a traditional Cuban marinade. It is great to marinade pigs, or even to serve as a companion to fried plantains, or even pour over a burger!
In a skillet cook 6 cloves garlic, minced, in 2 tablespoons olive oil over medium heat until just starting to brown. Remove from heat. Carefully add 1/3 cup orange juice, 1/3 cup lemon juice, 1 teaspoon ground cumin, and 1/2 teaspoon each salt and pepper. Bring to boiling; reduce heat. Simmer, uncovered, about 5 minutes or until slightly reduced. Remove from heat; cool. Whisk before serving.