For about 22 polpettine:
Place the ground beef in a large mixing bowl.
Roughly chop the drained olives and mix them with the meat.
Add the breadcrumbs, grated cheese, marjoram and season well with salt and pepper.
Mix very well using your hands adding one egg to bind the mix together.
Form small meatballs, about the size of a large walnut, and press them gently to flatten.
Warm up on medium-low heat the olive oil and two garlic cloves – lightly squashed.
Gradually add the meatballs into the pan and fry gently for about 5 minutes on each side, making sure not to burn the garlic.
Cover the pan with the lid and cook the polpettine until the meat is cooked through.
Decorate with fresh parsley moments before serving.