Preheat oven to 400 degrees and prepare an 11"x7" baking dish with nonstick cooking spray.
Peel and slice sweet potatoes into rounds then add them to your prepared dish.
Slice butter and add to a casserole dish with potatoes. Add in brown sugar, salt, and ground cinnamon. Mix together and coat potatoes.
Bake for 40-50 minutes until potatoes are tender.
Remove potatoes and top with mini marshmallows. Broil on high for 30-40 seconds until marshmallows are brown.
Notes
Tip: Slicing all sweet potatoes to be a similar size will help them all cook evenly.
What is a Yam?
Yams are hard to find in America unless you shop at a specialty store. 95% of yam crops are grown in Africa. If you can't find them I generally use sweet potatoes instead. While sweet potatoes are different they are the closest thing that you can find in your everyday grocery store.
You will need:
Here are a few kitchen tools that you will need for this recipe.
Potato Peeler (this is perfect to quickly peel potatoes)
A Good Knife (sweet potatoes or yams can be hard to cut so a good knife is a must)