Lazy Sweet Potatoes

Peel and cut the sweet potatoes into approximately 2 inch cubes (I sometimes do bigger, sometimes smaller). Put about 1/4 cup of butter and 1/4 cup of brown sugar on the bottom of the crockpot. Place half of the sweet potatoes on top of the sugar and butter. Put another 1/4 cup of butter and 1/4 cup of brown sugar on top. Add the remaining sweet potatoes. Put the remaining butter and brown sugar on top. Put on the lid and let it cook on low for about 5 hours - depending on how soft you like them. Check by pricking with a fork. Once the potatoes are cooked to your liking, pour them into a 9x13 pan. Top with mini marshmallows and broil until the marshmallows are nicely toasted. Enjoy. Yummy butter soaked sweet potato casserole with little hassle.