Chocolate Chip bars

Ingredients
100g soft butter
100g soft brown sugar
50g caster sugar
1 large egg
1tsp vanilla
200g self raising flour
100g chopped chocolate

Method
1. Pre heat oven 180°C/375°F/gas 5.
2.Butter and line a rectangular 18cmx26cm tin.
3. Cream butter & sugar well using a wooden spoon.
4. Beat egg and add vanilla.
5. Add egg mixture gradually, beating well with a wooden spoon.
6. Sift flour & fold in gently.
7. Chop chocolate & add. Use a spatula to fold in.
8. Spread mixture into a prepared tin.
9. Bake for approx 20 minutes.
10. Cut into bars whilst warm. Cool on a wire rack when cold dust with icing sugar.