I've always found McDonald's hamburger buns rather sweet, so swapping out the meat and cheese for cherry pie filling and whipped cream seemed like a decent concept. The result was much tastier than their standard cheeseburger. The spongy and sweet bun complemented the juicy chunks of cherry, and all of the elements stayed in place. The only issue with putting this dessert together is the cherry pies have about one tablespoon of filling, so you'll need to scoop out the contents of at least two. Tip: you can order a "side" of whipped cream for about 20 cents, if the cashier rings it up as "extra sauce". To get a plain bun, I had to order a McChicken with nothing in it, including the chicken.