I found this recipe on All Recipes Website. I did tweak it for our family but wanted to give you the option of having the whole recipe so here it is. I left out the Pecans and cut back sugar amounts a bit. Everyone loved it! the recipe below belongs to Heather from Spice Islands.
5 sweet potatoes
1/4 teaspoon salt
1/4 cup butter
1 teaspoon vanilla extract
1/2 teaspoon ground cinnamon
1/2 cup white sugar
2 tablespoons heavy cream
1/4 cup butter, softened
3 tablespoons all-purpose flour
3/4 cup packed light brown sugar
1/2 cup chopped pecans
Preheat oven to 350 degrees F (175 degrees C). Lightly grease a 9×13 inch baking dish.
Bake sweet potatoes 35 minutes in the preheated oven, or until they begin to soften. Cool slightly, peel, and mash.
In a large bowl, mix the mashed sweet potatoes, salt, 1/4 cup butter, eggs, vanilla extract, cinnamon, sugar, and heavy cream. Transfer to the prepared baking dish.
In a medium bowl, combine 1/4 cup butter, flour, brown sugar, and chopped pecans. Mix with a pastry blender or your fingers to the consistency of course meal. Sprinkle over the sweet potato mixture.
Bake 30 minutes in the preheated oven, until topping is crisp and lightly browned