Flame Grilled. Like, literally. 🔥

Now these ads might have caused a stir when they first came out. But I applaud Burger King and their agency David for having the balls to do/run them. They clearly make the point of what their difference is over McDonald's and do it in a very attention-getting way. That's what advertising is about. Especially these days.
Source: https://www.adsoftheworld.com/media/print/burger_king_oregon