Warm Potato Salad with Pancetta and Brown Butter Dressing

INGREDIENTS

Salt

2 lb

fingerling potatoes, sliced 1/2 inch thick

4 tbsp

unsalted butter

3 oz

thickly sliced pancetta, cut into 1/4-inch dice

shallot, minced

2-inch rosemary sprig

2 tbsp

sherry vinegar

1 tbsp

grainy mustard

Freshly ground pepper

2 tbsp

snipped chives