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1 cup balsamic vinegar
1/2 cup malt vinegar
1/3 cup Worcestershire sauce
3 tbsp tomato paste
1 tbsp brown sugar
2 tsp garlic powder
2 tsp onion powder
1/2 tsp salt
2 tbsp Tabasco sauce
1/3 cup Devil's steak sauce
1/3 cup dried bread crumbs
2 sliced green onions
1 finely chopped seeded jalapeno
1/4 cup salt
450 g ground beef
To make Devil's steak sauce: Boil balsamic vinegar in a large, wide frying pan over high until reduced by half, 2 to 3 min. Add remaining ingredients to pan. Continue boiling, whisking often, until slightly thickened and reduced to 1 cup, 2 to 4 more min. Cool completely.
To make Five-alarm burgers: Preheat barbecue to medium. Whisk 1/3 cup Devil's Steak Sauce with 1/3 cup dried bread crumbs, 2 sliced green onions, 1 finely chopped seeded jalapeno and 1/4 tsp salt in a large bowl. Crumble in 450 g ground beef. Mix until just combined. Do not over-mix. Shape into 4 burgers, each about 1 in. thick. Oil grill, then barbecue burgers, with lid closed, until cooked through, 5 to 6 min per side.