Preheat oven to 180 C

In an electric mixer beat the margarine and the sugars until creamy, about 2 minutes. Add the eggs.

Gradually beat in the flour and baking powder. Then stir in the chocolate.

Press batter into a cookie sheet and level it out.

Bake on 180 C for 15-20 minutes, until golden brown. While cookie sheet is still warm cut into squares or sticks!