INGREDIENTS
1 1/4 lb
small red-skinned potatoes, quartered
1/4 cup
extra-virgin olive oil, plus more for brushing
Kosher salt and freshly ground pepper
3 tbsp
steak sauce
1 tbsp
red wine vinegar
2 tsp
Dijon mustard
1 1/2 lb
boneless sirloin steak (about 1 inch thick)
2
romaine lettuce hearts, torn
1
large beefsteak tomato, quartered and sliced
1/4 cup
chopped fresh chives, plus more for topping
1/2 cup
crumbled blue cheese