I have made these for several years. The easiest way to coat the potatoes is to put them in large ziplock bag, and then add the melted butter/other ingredients. Shake VERY well to coat, but this is easy and not messy!
I made this 2 years in a row for Thanksgiving and my mother said yesterday - you are making those sweet potatoes again, aren't you? They are SO good!
I didn't have the same success as other reviewers with this recipe. I also made ahead of time, and wedges weren't coated, but rather soft and gooey. It was okay, but I'm still looking for my perfect sweet potato recipe.
Everyone loved this! I've made it for Thanksgiving two years in a row now and even people who claimed they didn't like sweet potatoes went back for seconds. This year I added some chopped pecans before baking and they were a great addition. I made it two days ahead and they kept well. Just had to reheat them for about 30 minues.