Winter is date season, and I look forward to the new crop each year, particularly meaty Medjools. I like to pair the dense, sweet fruit with salty Parmesan and earthy, crunchy walnuts. You can assemble this easy appetizer up to 8 hours in advance and heat just before serving.
24 large dates, preferably Medjool
2tspextra-virgin olive oil or walnut oil, plus more for drizzling