Instructions

• Heat the oven to 350°F, or 325°F for a fan oven, and line two baking sheets with parchment.
• Beat the softened butter and sugar until creamy, about one minute.
• Beat in the egg and vanilla until fully combined.
• Add the flour, baking powder, and salt, mixing slowly until a clumpy dough forms.
• Bring the dough together on a lightly floured surface, divide it in half, and shape two discs.
• Roll the dough to 1/8 inch for crisp cookies or 1/4 inch for softer cookies, dusting with flour as needed.
• Cut shapes and transfer them to the prepared sheets; refrigerate dough waiting its turn.
• Bake for 10 minutes, swapping trays halfway, until pale golden with lightly golden edges.
• Cool the cookies completely on the trays before decorating or serving.