Juniper Marinated Medallions Of Caribou Fillet

• 10 juniper berries
• 1 onion
• 1 carrot
• 1 bay leaf
• 1 sprig rosemary
• 475 ml wine (red)
• 425 gr fillet of caribou
• 60 ml cream
• 30 ml oil
• 20 gr black currant jam