Grilled California avocado B-L-T burgers with caramelised chipotle onions Recipe | Food Network UK

Ingredients

• 1 large sweet onion, halved and thinly sliced
• 1 tbsp spicy chipotle pepper sauce (recommended: Tabasco Chipotle Pepper Sauce)
• 1 tbsp beef stock
• 1 tbsp balsamic vinegar
• 1 tbsp vegetable oil or olive oil
• 1 tbsp crushed fresh garlic
• 1 tbsp dark brown sugar
• 180g light garlic-and-herbs spreadable cheese
• 110g blue cheese, crumbled
• 450g minced braising steak
• 450g minced sirloin
• 40g minced sweet onion
• 60ml zinfandel wine
• 45g minced fresh oregano, thyme, and basil leaves (any combination)
• 1 1/2 tsp spicy seasoned salt
• Vegetable oil, for brushing grill rack
• 12 avocado slices (prepare at the last minute, brushing with balsamic vinegar and sprinkling with spicy seasoned salt before grilling)
• 12 pre-cooked streaky bacon slices
• 6 soft kaiser rolls (about 11.5cm in diameter), split
• Cos lettuce leaves
• 6 large tomato slices, about 0.5cm thick