Preheat your oven to 350°F (175°C) and line two baking sheets with parchment paper.

In a bowl, whisk together flour, baking powder, and salt.

In another bowl, cream the butter with granulated and brown sugars until fluffy. Add egg, vanilla extract, orange zest, and juice; mix well.

Gradually combine dry ingredients with wet ingredients until just mixed.

Drop tablespoon-sized balls of dough onto prepared baking sheets about two inches apart.

Bake for 10-12 minutes until edges are lightly golden. Cool on the sheets for five minutes before transferring to wire racks.