Serve this hearty gratin as a side dish to accompany roasted chicken or lamb. For a vegetarian version substitute onion for the bacon and sauté it in a little olive oil, then proceed as directed. Neudorf is a Pyrenees-style sheep’s milk cheese with a complex nuttiness that comes from up to 15 months of aging. Appropriate substitutes include Piedmont from Everona Dairy in Virginia or a well-aged Manchego.
Chef Schwass likes to serve the warm brussels sprouts lightly topped with grated cheese, tiny pea sprouts, and a few tender-crisp leaves from a brussels sprout.