Orange Glazed Caribou Roast

• 4 caribou roast
• 1/2 juniper berries (crushed)
• 240 ml orange juice
• 130 gr wild currant jelly
• 30 ml orange juice
• 28 gr butter
• 16 ml lemon juice
• 14 gr brown sugar
• 16 ml oil
• 1 gr allspice