Preheat your barbecue grill to medium-high.
Combine the butter, ghee or other fat in a bowl with the curry powder, garlic and cumin. Season to taste with sea salt and freshly ground black pepper.
3 tablespoon butter, 2 cloves garlic, 1 teaspoon curry powder, ½ teaspoon ground cumin, Sea salt and freshly ground black pepper to taste
Cut out 4 large pieces of foil and divide the mussels in the middle of each of them.
2 lbs mussels
Top with the fat and spice mixture, the bell peppers, the parsley and the lime slices.
1 cup bell peppers, ¼ cup fresh parsley, 1 lime
Close the packets tightly, leave some space at the top for steam to form.
Place on the preheated grill and cook for about 6 to 8 minutes, until the mussels have opened.
Discard any unopened mussel and serve with the lime wedges.
1 lime