Chicken pot pie with spicy coleslaw

INGREDIENTS

• 375g/13oz boneless chicken thighs
• 125ml/4fl oz chicken stock
• 4 tbsp single cream
• 3 stalks celery
• 1 leek
• 125g/4½oz new potatoes
• 2 garlic
• 250g/9oz cooked ham
• 25g/1oz salted butter
• 3 tbsp plain flour
• ¼ tsp freshly grated nutmeg
• 2 tbsp chopped fresh flat-leaf parsley
• salt and freshly ground black pepper
• 1 sheet of ready-rolled puff pastry
• 1 egg yolk
• ¼ white cabbage
• ¼ red cabbage
• 1 medium carrot
• 1 medium beetroot
• ½ red onion
• 3 radishes
• 2-3 tbsp mayonnaise
• ½ lemon
• 1 red chilli