Grilled Sweet and Hot Sausage with Grilled Onion Marmalade and Red Peppers

Name: Grilled Sweet and Hot Sausage with Grilled Onion Marmalade and Red Peppers
Ingredients: 3 red onions, sliced in half; 3 tablespoons olive oil; Salt and freshly ground pepper; 1 clove garlic, finely chopped; 1 small jalapeno pepper, finely diced; 1 cup red wine vinegar; 1/4 cup creme de cassis; 1/4 cup grenadine; 1/4 cup red wine; 1/4 coarsely chopped parsley; 2 red peppers, grilled, quartered and seeded; 1 pound hot Italian sausage, sliced in half, vertically, then quartered; 1 pound sweet Italian sausage, sliced in half, vertically, then quartered; 4 hoagie rolls