Method
Preheat oven to 180°C/350°F/Gas 4. Use vegetable oil to grease a square tin. Put margarine, sugar, flour, cocoa powder and the eggs in a bowl and beat well until thoroughly mixed and smooth. Spoon into the prepared cake tin and level the surface. Bake for about 30mins. Cool in the tin for 5 mins, then loosen the edges with a knife and transfer to a wire rack. Leave the cake to cool completely. Cut the cake into 16 even-size bars.

To make the topping, place the butter in a bowl, sift the cocoa powder and icing sugar and beat until smooth. Spread the topping evenly over the cakes. Add a strip of liquorice to each cake and decorate with Smarties for the dominoe dots.

Thanks to
Emily Rice from the United Kingdom for submitting this Chocolate Dominoes recipe.

Added on 20 May 2008.