Mom'S Christmas Pie
["2 Tbsp. butter", "3/4 c. sugar", "2 c. milk", "2 egg whites, well beaten", "1/4 c. cornstarch", "1/2 tsp. salt", "1 tsp. vanilla"]
["Scald milk. Melt butter and blend in cornstarch, sugar and salt. Gradually add milk to melted butter mixture. Cook mixture until fairly thickened. Remove from fire; add gradually to beaten egg whites. Stir in vanilla. Pour into baked 9-inch pie shell and bake in 350\u00b0 oven for 5 minutes. When cool, top with whipped cream. Garnish with chopped nuts."]
["butter", "sugar", "milk", "egg whites", "cornstarch", "salt", "vanilla"]