Set oven to 180 degrees.
Grease or paper line 2 biscuit trays.
Sift dry ingredients.
Beat butter and sugar until light and fluffy. Add egg and beat well. Stir in choc bits.
Add flour and stir thoroughly to combine.
Drop teaspoons of mixture onto prepared trays, allowing room for spreading.
Bake for 15 minutes or until golden brown.
Allow to cool slightly on trays before removing to a wire rack to cool completely.
Store in an airtight container.
Makes approx. 24 cookies.