Edinburgh Rock

• 1lb loaf sugar
• pinch of cream of tartar
• ½ pint

Crush the sugar and put it into a saucepan with the water. Bring to the boil and add the cream of tartar. Continue boiling without stirring until a little dropped in cold water forms a hard lump. Put in the required flavouring and colouring and pour on to a marble slab. As the mixture cools, push the edges to the middle with a buttered knife. Dust with a little icing sugar and pull until the su