Sift the black sesame powder in a bowl. Set it aside.
Place the softened unsalted butter and sea salt in a mixing bowl.
Beat at medium low speed using a hand held mixer until the mix becomes fluffy in texture and pale in colour. You may need to stop the mixer once or twice at this stage and scrape down the sides of the bowl to make sure all the butter is well beaten.
Add the chilled cream into the mixture and continue to beat until everything is well combined.
Place a sieve on the mixing bowl and sift in the cake flour, then remove the sieve.
Add the sifted black sesame powder. Mix well, using a silicone spatula until everything is well incorporated and you can't see any flour.
Add the black sesame seeds and continue to mix well until the seeds are well distributed.
Sandwich the dough in two sheets of baking paper.
Gently roll out the dough into an approximate size of 26 x 18 cm and in 5 mm thickness.
Place the rolled dough on a baking tray and chill it for 30 to 60 minutes in the refrigerator.
When the dough is chilling, preheat the oven to 170°C.
When the dough is ready, take the chilled dough from the fridge and place it on a chopping board. Peel off the top sheet of baking paper and place it on a baking tray.
Trim off the edges of the dough using a sharp knife in order to get straight even pastry sticks. This step is totally optional.
Cut out each stick in the size of 13 x 1.5 cm and place it on the lined baking tray, spacing them about 1 cm apart. Use the knife as a guide to straighten each stick.
when finished cutting, bake in the preheated oven for 15 to 20 minutes or until the edges turn golden brown and dry on the surface.
Let the pastry sticks sit on the baking tray for 5 minutes before transferring them onto the wire racks to cool down completely.
Enjoy! It really is a perfect snack for any occasion.