Preheat the oven to 400° Fahrenheit.
In a large bowl, cream together butter, vanilla, and powdered sugar until pale and fluffy.
In a separate bowl, whisk together flour and salt. Add the flour mixture into the butter mixture and mix until just combined.
Spoon the dough into a piping bag fitted with a medium star nozzle. Pipe the dough into 5cm swirls on a lined baking tray.
Bake for 15 – 20 minutes or until a pale golden.
Leave to cool on the trays for 5 minutes then transfer to a wire rack to cool completed.
Optional: In a small bowl, melt the chocolate in a microwave on 15 second burst. Dip the cookies, one at a time, into the chocolate to cover half of the cookie. Allow chocolate to cool and harden.
Enjoy!!