I want to make this as a side dish at Thanksgiving. I am drawing a complete blank for some reason on the details of how to make a really simple candied yam dish. What I want is long slices of sweet potatoes/yams in baking dish dotted with butter and sprinkled with cinnamon/nutmeg and brown sugar. The part I'm blanking on is: do I bake the sweet potatoes first, then cool them before slicing and then re-bake them? Or will it work to use raw slices and bake for longer? Duh! I just can't remember. When I try googling I keep getting recipes where the potatoes are baked then mashed, which isn't what I want. Also help w/quantities please -- 25 people (20 adults, 5 elementary school age kids) - moderately heavy eaters. Thanks!