Prepare the Dough: In a large mixing bowl, cream together the butter and caster sugar until light and fluffy.
Gradually add the sifted flour and mix until just combined.
Fold in the chocolate chips evenly.
Chill the Dough: Cover and refrigerate for at least 2 hours (or overnight for best results).
Preheat the Oven: Set your oven to 180°C (350°F). Line a baking sheet with parchment paper.
Shape and Bake: Roll out the dough and cut into desired shapes, or slice into rounds if using a log method. Place on the baking sheet.
Bake for 12-15 minutes or until the edges turn a pale golden color.
Cool: Let the shortbread rest on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.