Mallard with Radicchio and Roasted Grapes

Ingredients

• 2 mallard ducks oven-ready
• 2 rosemary sprigs
• 4 thyme sprigs
• 1 brown onion, peeled and cut into small wedges
• 2 garlic cloves, peeled
• 2 oranges, zest and juice
• 2 cinnamon stick
• 50 grams butter, plus a little extra for placing in the cavity
• 1 tbsp olive oil
• 2 radicchio
• 350 grams grapes
• 2 tbsp balsamic vinegar
• Maldon sea salt and freshly ground black pepper