Chicken Burgers with Barbecue Sauce

Barbecue Sauce

• 1 cup (250 ml) maple syrup
• 1 shallot, finely chopped
• 2 cloves garlic, finely chopped
• 1 cup (250 ml) ketchup
• 1/4 cup (60 ml) Dijon mustard
• 2 tbsp (30 ml) apple cider vinegar
• 2 tsp (10 ml) sambal oelek
• 1/4 tsp ground cinnamon
• 1/4 tsp ground coriander

Grilled Chicken

• 8 skinless, boneless chicken thighs
• 2 tbsp (30 ml) olive oil
• Salt and pepper

Burgers

• 4 large hamburger buns
• Mayonnaise
• 1 avocado, peeled, pitted and sliced
• Iceberg lettuce, thinly sliced