Chocolate traybake recipe

[waggledancer]

I recently made a Mary Berry chocolate traybake from a recipe in Sainsburys magazine. Need to make it again today, but can't find the recipe. Have tried the internet with no success. Am now turning to the wise of Mumsnet.

Can anyone give me the recipe and save Mother's day for me?

TIA

Finally found the book
Heres the recipe for FUDGE ICING
2oz MARG
1oz COCOA,SIFTED
about 2 tbsp MILK
8oz ICING SUGAR, SIFTED
melt marg in small pan, add sifted cocoa and cook for 1 min, remove from heat. stir in milk and icing sugar, BEAT WELL (THIS HURTS YOUR ARMS may want to use a electric hand mixer ) until smooth. cool a little then spread on what ever you fancy!!!

I thight this was a tray bake but in fact its a brownie mix
12oz PLAIN CHOC BROKEN IN PIECES
8oz MARG
2tsp INSTANT COFFEE
2 tbls HOT WATER
3 size 2 EGGS
1 tsp VANILLA ESSENCE
3 oz S/R FLOUR
6 oz WALNUT PIECES, CHOPPED
8oz PLAIN CHOC CHIPS
preheat oven 190/375/gas5 grease and base line 12 by 9 in roasting tin
melt choc slowly with marg stirring occasionally. allow to cool. dissolve coffe in hot water.
in another bowl mix together coffee eggs sugar & essence gradually beat in choc mix. fold in the flour walnuts & choc chips pour into prepared tin
bake for about 40/45 mins or until firm to touch and until a dull crust has formed leave to cool in tin.

Is this it?

Sorry it might be wrong !!

DH found original magazine in his "things I've tidied away without telling you" drawer!. Cake baked, and devoured. Mum's best cake maker title retained.

Thanks for the help