* 1 cup plain flour
* 1/2 tsp bicarbonate of soda
* 125g softened butter
* 1/4 cup white sugar
* 1/2 cup soft brown sugar
* 1 tsp vanilla extract
* 1 egg
* 3/4 cup chocolate chips
* pinch of salt
Preheat oven to 190C.
Cream butter and sugar until light and fluffy.
Add vanilla and egg and beat until combined.
Sift flour, bicarbonate of soda and salt and stir into creamed mixture.
Add chocolate chips and mix well.
Roll mixture into a log about 5cm in diameter, then wrap in cling wrap and freeze for 1 to 2 hours.
Remove from freezer and thaw for 10 minutes before cutting into 1cm slices.
Place slices on baking trays and bake for 10 to 12 minutes until golden brown.