Wash and peel potatoes and boil until tender in salted water. Mash with butter while still hot. Stir in sugar, vanilla, lemon and seasonings.
Beat eggs well and combine with milk. If using coconut, add to milk. Slowly add milk to sweet potatoes, stirring until well mixed.
Butter a casserole and transfer potato mixture, spreading evenly. Dot the top with an extra tablespoon of butter, if desired.
Bake at 400°F until firm and lightly browned.
Submitted by: CM