Festive Bubble Patties - Ainsley Harriott

Ingredients

• 250g leftover roast potatoes, roughly chopped or mashed
• 250g leftover vegetables (parsnips, carrots, swede, cabbage, sprouts), chopped
• ½ red onion, diced
• 75g cooked chestnuts, roughly chopped
• 75g leftover stuffing (optional)
• 1 tsp chopped fresh thyme leaves
• 1 tbsp chopped fresh parsley
• sea salt & black pepper
• glug of olive oil
• 15g butter
• 4 eggs
• handful of watercress, to serve
• chilli sauce (sriracha) or chilli flakes, to serve