For the blue cheese sauce
01 -
3 oz (85 g) blue cheese, crumbled
02 -
1/4 cup (60 g) mayonnaise
03 -
2 tablespoons (30 g) sour cream
04 -
1 tablespoon chopped fresh chives
05 -
1 teaspoon fresh lemon juice
06 -
1/4 teaspoon black pepper
For the burgers
07 -
1 1/2 lb (680 g) 80/20 ground beef
08 -
1 teaspoon kosher salt
09 -
1/2 teaspoon black pepper
10 -
4 oz (115 g) thin sliced pancetta
11 -
4 brioche burger buns, split
12 -
1 cup (25 g) baby arugula
13 -
1/4 small red onion, very thinly sliced