FOR THE LAMB AND MAPLE BURGERS

• 500g lamb mince
• 1 diced onion
• 1 garlic clove
• 2 tablespoons + 1 teaspoon pure maple syrup (preferably dark syrup for its robust taste)
• 2 tablespoons + 1 teaspoon whisky
• 1 egg
• Salt and pepper

FOR THE MAPLE BBQ SAUCE

• one can tomato sauce
• 1 1/2 tablespoons + 3 teaspoons tomato paste
• 1 1/2 tablespoons + 3 teaspoons pure maple syrup (preferably dark syrup for its robust taste)
• 1 1/2 tablespoons + 3 teaspoons Worcestershire sauce
• 3 teaspoons garlic powder
• 3 teaspoons paprika
• 1 teaspoon onion powder
• 1 teaspoon salt
• 1 teaspoon black pepper
• 1 pinch cayenne pepper

TO SERVE

• 5 brioche buns
• 1 sliced red onion
• 1 sliced tomato
• Lettuce broken into leaves