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

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

In a large bowl, cream the softened butter and sugar until light and fluffy.

Beat in the egg, followed by orange juice, orange zest, and vanilla extract until fully combined.

Gradually mix in the dry ingredients until just combined to avoid overmixing.

Drop spoonfuls of dough onto prepared baking sheets about two inches apart.

Bake for 10-12 minutes or until lightly golden around the edges but still soft in the center.

Allow to cool slightly before serving.