Instructions

• Heat the oven to 350°F and line two baking sheets with parchment.
• Beat the softened butter and sugar until light and creamy. Beat in the egg and vanilla.
• Whisk the flour, baking powder, and salt in a separate bowl. Add the dry mixture to the butter mixture and mix just until a soft dough forms.
• Scoop the dough into 24 portions and roll each into a ball. Arrange them on the prepared sheets with room to spread.
• Flatten each ball lightly with the bottom of a glass and sprinkle with sanding sugar if using.
• Bake for 9 to 11 minutes, until the edges are set and the centers still look slightly soft. Cool on the sheet for 5 minutes, then move to a rack.