Ingredients
1/2 can (400 grams for full can) condensed milk
125 grams (4 1/2 oz.) self-raising flour
1 tablespoon cocoa
1 tablespoon chocolate powder
1/2 teaspoon soda bi-carb
1 level teaspoon baking powder
60 ml. melted butter or margarine
1 teaspoon vanilla essence

Method
1. Sieve flour, cocoa, chocolate powder, baking powder and soda bi-carb together.
2. Mix condensed milk, flour mixture, 75 ml. (2 1/2 fl. oz.) water, vanilla essence and melted butter thoroughly.
3. Pour cake mixture into a greased and dusted 150 mm. or 175 mm. (6" or 7") diameter tin.
4. Bake in a hot oven at 200 degree C (400 degree F) for 10 minutes. Then reduce temperature to 180 degree C (350 degree F) and bake for a further 10 minutes.
5. The cake is ready when it leaves sides of tin and is springy to touch. When ready, take out from oven and leave for 1 minute. Invert tin over a rack and tap sharply to remove.
6. Cool cake.