Method:

• Preheat oven to 160 degrees celcius.

• Line a small baking tray with grease poof paper.

• Measure the butter/margarine and dark chocolate into a saucpan and melt slowly, and then set aside to cool a little.

• In a bowl, whisk the egg, sugar and a little of vanilla essance, until light and fluffy (you may use an electric whisk for this).

• Pour the chocolate mix a little at a time, and very carefully fold it into the egg and sugar mix. it should be quite dark, at this point you may add the chocolate chips.

• Place in lined tray and bake in oven for atleast 20-30 minutes.

• You can tell if its done if you stick a knife in it and hardly anything is sticking on it.

• leave aside to cool and solidify for 30-40 minute and then cut into desired pieces.