Chocolate Biscuits of Doom

These are rich and chocolatey to the extreme. You have been warned.

1. Cream
   125 gm (1/2 cup) butter
   1/4 cup castor sugar
2. Sift and stir into creamed mixture
   1 cup self raising flour
   (or plain flour with 1/2 teaspoon each of baking soda and baking powder)
   Pinch salt
   1/4 cup chocolate powder
3. Roll into balls and place on greased cooking sheet with room to spread.
4. Flatten each ball with a fork dipped in cold water. Don't crisscross.
5. Bake at 190 C (375F) for 7 to 8 minutes.