1/2 c. butter
3/4 c. sugar
1 sq. chocolate, melted and cooled
1 tsp. vanilla
2 eggs
1 baked pie shell

Cream butter. Gradually add sugar and cream for 4 minutes until not gritty. Blend in melted chocolate and vanilla. Add eggs, one at a time, beat after each egg until fluffy. Pour into cooled, baked pie shell. Chill for about 2 hours.