This rich, creamy gratin of beautiful white asparagus wrapped in a cozy blanket is delicious paired with a simple roast chicken. A leafy green salad—tossed with a dressing that has a note of acidity—is the only other accompaniment you need. Alternatively, you can serve this gratin as it is, with some warm bread to mop up the sauce and, perhaps, some finely sliced porcini mushrooms on the side, dressed with no more than beautiful olive oil, sea salt, and black pepper.
Cooks' Note
It is important not to overcook this dish—the asparagus should retain a bite and nuttiness. Overcooking could make the spears seem as though they have come out of a can.