Preheat oven to 170°C.
Grease a 9 x 13 pan.
Melt chocolate and butter in a saucepan over low heat; set aside.
In a mixer, beat eggs, sugar and vanilla at high speed for 10 minutes.
Blend in chocolate mixture, flour and salt until just mixed.
Stir in the nuts.
Pour into prepared pan.
Bake Ultimate Brownies for 35-40 minutes. Don't overbake!
Cool in pan on wire rack.
Cut into squares and frost if desired, but that is not necessary.
