DUCKO DUCK LEGS
1 500g Ducko Duck Legs
3 Red onions, diced
30g Butter
1 Tablespoon olive oil
1 Tablespoon balsamic vinegar
2 Tablespoons orange marmalade (Can be substituted with honey, or brown sugar)
Salt and pepper (To taste)
3 Sheets puff pastry
Crème fraiche, or sour cream (To serve)