- 1 cup butter
- 1 1/2 cups white sugar
- 4 (1 ounce) squares unsweetened chocolate, melted
- 1 teaspoon vanilla extract
- 4 eggs
- 1 (9 inch) deep dish pie crust, baked and cooled
- In a large bowl, beat butter and sugar until light and fluffy. Blend in chocolate and vanilla. At medium speed, beat in eggs, one at a time, taking 5 minutes for each egg. (This is very important, 5 minutes for each egg!)
- Spoon into pie shell and chill. Top with whipped cream before serving, if desired.