Thaw mussels, rinse with cold water,drizzle with vinegar and oil, let it stand marinated. To fry small pieces of bacon. String mussels and bacon do on skewers. If you are going to cook on an open fire-on metal skewers.
Grease skewers with egg and sprinkle with breadcrumbs. Fry in oil for 2-3 minutes on each side. Or in open fire.