4 squares bitter chocolate
2/3 c. butter
4 eggs
2 c. sugar
2 tsp. vanilla
1 1/3 c. flour
1 tsp. baking powder
1/2 tsp. salt
1 c. chopped pecans (optional)

Melt chocolate and butter together. Mix eggs, sugar and vanilla together, then add to chocolate mixture. Mix flour, baking powder and salt together and then add to chocolate mixture. You can then add the pecans, if desired. Pour into oiled 9x13x2 inch pan. Bake at 350 degrees for 30 minutes. Cut into squares.