Combine sweet potatoes and butter in lg bowl. Mix until well blended. Add eggs, sugar, milk, evaporated milk, lemon juice, vanilla, cinnamon, salt, heavy cream, syrup,cloves, ginger and nutmeg.

Spoon mixture into pan. Bake 20 minutes at 350 degrees or until heated through. Arrange marshmallows over top. Bake for 3 minutes or until marshmallows are golden brown and puffed.