Step 1

Combine butter and golden syrup in a medium pan and stir over heat until the butter is melted. Stand until warm.

Step 2

Stir in sifted dry ingredients, sugar, coconut and egg; press mixture over base of greased 19 cm x 29 cm rectangular slice pan.

Step 3

Bake in a moderate oven for about 30 minutes or until lightly browned and firm. Cool in pan.

Step 4

To make lemon icing, sift icing sugar into small heatproof bowl and stir in butter, rind and enough juice to make a stiff paste. Stir over hot water until spreadable.

Step 5

Spread the slice with lemon icing and leave to set.