Lamb Burgers with Chipotle and Fried Onions - James Martin Chef

Ingredients

• 600g minced lamb
• 1 small bunch coriander, chopped
• 1 small bunch mint, chopped
• ½ tsp ground cumin
• ½ tsp ground coriander
• Salt and pepper
• 25ml olive oil
• 200ml crème fraîche
• 1 chipotle, soaked and chopped
• 2 limes, juice and zest
• 2 shallots, peeled and sliced
• 50ml milk
• 50g plain flour
• 3 brioche buns
• Mint and coriander
• 1 bunch watercress