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

In a large mixing bowl, combine unsalted butter, granulated sugar, and powdered sugar, and beat until light and fluffy.

Add the egg, lemon juice, and lemon zest to the butter-sugar mixture, blending until smooth.

In another bowl, whisk together the flour, baking powder, baking soda, salt, and pink lemonade drink mix.

Gradually add the dry ingredients to the wet mixture, mixing until just combined. Fold in white chocolate chips if using.

Scoop rounded balls of dough onto the baking sheets, spacing them about 2 inches apart.

Bake for 10-12 minutes until edges are golden and centers are soft.

Let cool on sheets for 5 minutes before transferring to a wire rack. Dust with powdered sugar before serving.