Make these in August with large, firm, ripe tomatoes (like Dolly Parton used to have).
Slice tomatoes in half widthwise, and top with:
Spray grill with Pam and barbecue on low heat until bottoms are black. While cooking, push them around with a fork, not tongs (so they don’t bust—hey, another Dolly Parton reference!).
When done, drizzle olive oil over top.