A classic shortbread cookie recipe, turned it into a thumbprint cookie, and then filled it with dulce de leche and a sprinkling of chopped roasted hazelnuts!
Use a small cookie scoop to scoop out the dough. Using your hands, roll the dough into a ball and then place it onto a prepared baking sheet lined with parchment paper. Press a thumbprint into the dough. Repeat with the rest of the dough.