Ultimate Christmas burger - Good Food Middle East

Ingredients

• 20g unsalted butter
• 1 banana shallot, finely chopped
• 500g 12% fat beef mince
• 40g fresh breadcrumbs
• 1 egg yolk
• 2 tsp English mustard
• ½ tsp cracked black pepper
• 8 thin slices of smoked pancetta
• 2 tbsp vegetable oil
• 4 brioche burger buns
• 4 tbsp cranberry sauce
• chicory or salad leaves, to serve
• 80g crumbled blue cheese (stilton works well)
• 1 tbsp mayonnaise
• 2 tbsp soured cream