Sweet Potato Souffle
["2 c. cooked, mashed sweet potatoes", "1/2 c. hot milk", "5 Tbsp. rum", "4 Tbsp. butter", "pinch of nutmeg", "1 tsp. salt", "1 Tbsp. grated lemon rind", "4 beaten egg yolks", "4 stiffly beaten egg whites"]
["Combine mashed potatoes, hot milk (mixed with rum), butter, nutmeg, salt, lemon rind and egg yolks.", "The fold in egg whites. Put in a buttered casserole and bake in a hot 400\u00b0 oven for 25 minutes.", "Serves 4 to 6."]
["potatoes", "hot milk", "rum", "butter", "nutmeg", "salt", "lemon rind", "egg yolks", "egg whites"]