Chocolate Chess Pie
["1 unbaked pie shell", "3/4 stick margarine or butter", "1 sq. chocolate", "2 eggs", "1 c. sugar", "1 tsp. vanilla"]
["Melt chocolate and margarine in a saucepan on low heat. When melted, add the other ingredients; mix well. Pour into pie shell. Bake at 350\u00b0 for 25 to 30 minutes."]
["shell", "margarine", "chocolate", "eggs", "sugar", "vanilla"]