----------------------------------TOPPING---------------------------------- 3 T Butter
3/4 c Sugar
2 Eggs, beaten
1 Egg yolk, beaten
2/3 c Chopped pecans
3 T Flour
1 t Vanilla
Heat oven to 350 degrees. Grease and flour 9x9x2 inch pan. Melt butter in 2-quart saucepan; remove from heat. Mix in cocoa, sugar and eggs. Stir in remaining ingredients except topping. Spread in pan. Bake 23 minutes. Meanwhile, prepare topping: Melt butter in 1-quart saucepan; remove from heat. Mix in sugar, eggs and egg yolk.
Stir in remaining ingredients. Immediately pour topping over brownies; spread evenly. Bake about 18 minutes longer or until firm; cool. Cut into 2 1/4 x 1 1/2 inch bars.