Super Fudge Pie

In top of double boiler or over low heat, melt butter and chocolate. Meanwhile, place the eggs in a mixing bowl and beat until light. Beat into the eggs the Karo syrup, sugar, salt, and vanilla. Now, add the chocolate mixture (slightly cooled). Mix thoroughly and pour into a 9-inch pastry-lined pie pan. Bake at 350 for 25 minutes, or until top is crusty and filling is set, but still somewhat soft inside. Do not over bake. Pie should shake like custard so it will not be too stiff when cool. This may be served plain, but is best served with a topping of vanilla ice cream. Mary always serves this pie with whipped cream and adds seasonal berries if available.