01 -
Combine beef mince, crumbled blue cheese, breadcrumbs, beaten egg, and finely chopped onion in large bowl.
02 -
Add Worcestershire sauce, Dijon mustard, chopped parsley, salt, pepper and Tabasco to meat mixture.
03 -
Mix ingredients thoroughly but gently with hands until everything is evenly distributed.
04 -
Form mixture into six equal-sized thick patties, being careful not to overwork the meat.
05 -
Cover formed patties with plastic wrap and refrigerate for exactly 30 minutes to firm.
06 -
Heat skillet over medium-high heat until hot enough for pancetta to sizzle.
07 -
Cook pancetta slices until completely crisp, then remove and set aside.
08 -
Cook burgers in same pan over medium heat for 3-4 minutes per side.
09 -
Press burgers gently with spatula while cooking to ensure even contact with pan.
10 -
Meanwhile, combine crumbled blue cheese, sour cream, chives, oil and Worcestershire for sauce.
11 -
Adjust sauce consistency with additional sour cream if needed until spreadable.
12 -
Toast brioche buns until golden brown on cut sides.
13 -
Spread onion chutney generously on bottom half of each bun.
14 -
Place cooked burger on chutney-spread bun bottom.
15 -
Top each burger with crispy pancetta and generous amount of blue cheese sauce before adding bun top.