Combine baking flour, brown sugar, Anchor Milk Powder, grated coconut, raisins, baking powder and mixed spice in a large bowl.
Whisk eggs, add water, vanilla and melted margarine.
Make a well in the centre of the dry ingredients and add the liquid. Lightly mix until the liquid is absorbed.
Scrape the batter into a greased baking tin and put to bake in a pre-heated oven 180°C (350°F) for about 30 minutes or until a skewer inserted comes out clean.
Remove from the oven and put to cool before slicing.
12 - 16 ounces of water may be used.