Cathy's Sweet Potato Pudding

Description
Notation on card says it was out of the Recipes from Old Virginia cookbook of 1828 from my Aunt Maggie's Collection.
 * Contributed by Cat's Recipes Y-Group

Ingredients

 * 1 pound cooked and peeled sweet potatoes
 * 1 cup sugar
 * ½ cup butter, melted
 * 6 egg yolks, beaten
 * 1 tablespoon granted lemon rind
 * ¼ teaspoon mace
 * 1 cup orange juice
 * 6 egg whites
 * ¼ cup sugar

Directions

 * 1) Mash the sweet potatoes.
 * 2) Add 1 cup of the sugar and the melted butter.
 * 3) Combine with beaten egg yolks, lemon rind, mace, and orange juice.
 * 4) Beat the whites until stiff and fold into sweet potato mixture.
 * 5) Pour into a well greased baking dish.
 * 6) Sprinkle with ¼ cup sugar and bake in a 350°F oven for 1 hour.