1.  In large pot add 2 tsps both of salt and cinnamon to water before adding peeled, chopped sweet potatoes/yams. Boil until fork tender.

2. Pre-heat oven to 400.

3.  In large bowl combine sweet potatoe/yams with canned apple pie filling. Add vanilla extract and remaining dry ingredients. 

4. Spread mixture into large casserole dish, top with pats of butter and bake for 40 minutes or until bubbling.