1. Beat eggs until thick and pale in colour.
2. Gradually add sugar and beat until well blended.
3. Stir in oil, chocolate and vanilla essence.
4. Combine dry ingredients and add to mixture blending well.
5. Stir in nuts and spread in butter 13x9x2 inch pan.
6. Bake at 350 deg. (180 deg.C) for 25 to 30 minutes.
7. Cool in pan on cake rack.
8. Cut into 2 inch squares.
9. Makes 24 squares
10. Serve with ice-cream and chocolate sauce.

Image: Flickr/creativecommons jeffreyww