Ripe plantains take extremely well to the grill.
Grilled plantains are great with grilled pork, beef or chicken.
Light a grill fire. Combine the orange juice, lime juice, and brown sugar in a small saucepan. Bring to a boil, stirring to dissolve the sugar. Simmer until the mixture thickens to the consistency of a thin syrup, about 3 minutes. Remove from the heat and set aside.