Chocolate Cream Pie

Add chocolate to milk and heat in double boiler. When chocolate is melted, beat with rotary egg beater one minute, or until mixture is smooth and blended. Combine flour, sugar, and salt. Add to egg yolks. Pour small amount of chocolate mixture over egg mixture, stirring vigorously. Return to double boiler and cook until thickened, stirring constantly. Add butter and vanilla. Cool. Pour into pie shell and cover with meringue made by folding sugar into egg whites. Bake in 425 degree oven 5 minutes or until delicate brown.