Wrap tofu in a cloth and squeeze out excess water. Sift cake flour and baking powder together.

In a large bowl, mix grapeseed oil, egg, sugar, and salt using a whisk. Add the drained tofu, sifted flour, baking powder, and black sesame seeds, then mix until combined.

Place the dough on a flat surface covered with plastic wrap. Sprinkle flour on top, cover with another plastic wrap, and roll out with a rolling pin to a uniform thickness of 0.5cm.

Cut the dough into desired shapes or use cookie cutters. Place the shaped dough on a baking tray lined with parchment paper.