Pork medallions - Good Food Middle East

Ingredients

• 1 tbsp olive oil
• 600g pork medallions
• 2 tbsp unsalted butter
• 2 banana shallots, thinly sliced
• 250g chestnut mushrooms, sliced
• 1 garlic clove, crushed
• 1 tbsp plain flour
• 100ml madeira or sherry
• 400ml chicken stock
• 4 sprigs thyme
• ½ tbsp wholegrain mustard
• 100ml double cream
• mashed potato and wilted greens, to serve