Add all the dry ingredients into a food processor and pulse one or two times.
Add the chopped butter into the food processor and pulse two or three times until resembles coarse bread crumbs.
Add the milk and pulse again.
Wrap the ball of dough with saran wrap/cling film and leave it in the fridge for 30 minutes.
Preheat the oven to 180 degrees Celsius (or 350 degrees Fahrenheit).
Roll the dough out until it's about 5mm thick.
Form it into a rectangle shape, cutting off the excess dough on the sides. Then cut it into thin pieces about 5mm (or 0.19 inches) wide.
Place the sticks in the oven and bake for 15 minutes.
Coat with melted chocolate, and any other toppings of your choice.
Video
Notes
If you don’t want to make 70 sticks in one go, the cookie dough can be stored for about 3 days in the fridge, and for about 3 months in freezer. Ensure the dough it tightly wrapped in cling film (twice) and stored in a zip lock bag.