2 (2 oz.) sq. unsweetened chocolate
1/2 c. butter
2 eggs
1 c. sugar
1 tsp. vanilla
2/3 c. flour

Preheat oven to 350 degrees. Grease an 8 x 8 inch pan. Melt the chocolate and butter. Allow to cool for a few minutes. Then in order beat in the eggs, then mix in the sugar, vanilla, and flour. Pour into the pan. Bake for 18-22 minutes.