French Silk Chocolate Pie
["1 c. butter or oleo", "1 1/2 c. sugar", "4 sq. unsweetened chocolate, melted", "2 tsp. vanilla", "4 eggs"]
["Cream butter, gradually add sugar, creaming well.", "Blend in melted and cooled chocolate and vanilla.", "Add eggs, 1 at a time, beating 5 minutes after each egg addition (medium speed).", "Pour into crust and chill at least 2 hours."]
["butter", "sugar", "unsweetened chocolate", "vanilla", "eggs"]