Sweet potatoes are a staple here in the Deep South of the U.S.. One of my favorite recipes is Bourbon mashed sweet potatoes. Bake several large sweet potatoes, scoop out the insides and mash together with about 1/2 stick or more of melted butter, some vanilla, brown sugar, and equal parts heavy cream and bourbon. Add a bit of salt, too. So good & easy! If you're feeling really fancy, mix together some pecans, brown sugar and butter, put it on top and pop it in the oven for a bit.
My other favorite is sweet potato pie. Yum. Now I have to go bake.