Step 1

Combine Weet-Bix, flour, baking powder, cocoa and coconut in a mixing bowl.

Step 2

Place sugar, golden syrup and margarine into a saucepan and simmer until sugar is dissolved.

Step 3

Add vanilla essence and blend together.

Step 4

Pour the liquid blend over dry ingredients and mix together.

Step 5

Press into a 20cm x 30cm lined baking dish.

Step 6

Bake in a moderate oven, 180°C, for 15 minutes or until firm. Remove from oven and cool.

Step 7

To make icing combine icing sugar, cocoa and margarine in a bowl. Gradually add boiling water mixing until desired thickness is reached.

Step 8

Spread icing over slice.