INGREDIENTS • brussels spr • pancetta, diced • outs, trimmed of outer leaves and sliced in half • butter3 shallots, peeled, halved, and sliced2 Tbsp all purpose flour1 3/4 cup whole milk1 teaspoon saltScant pinch of freshly ground nutmegThyme leaves from 2 sprigs of thyme or 1/2 teaspoon dry thyme4 ounces of grated Gruyere cheese, divided 3 ounces and