01 - Preheat the oven to 350°F. Line two baking sheets with parchment paper.
02 - In a medium bowl, whisk together flour, baking powder, baking soda, and salt until evenly distributed. Set aside.
03 - In a large bowl, beat softened butter, granulated sugar, and brown sugar until light and fluffy, approximately 2-3 minutes.
04 - Add eggs one at a time, beating well after each addition. Mix in ube halaya, vanilla extract, and ube extract until fully combined and dough is evenly colored purple.
05 - Gradually add dry ingredients to wet mixture, mixing until just combined. Avoid overmixing to prevent tough cookies.
06 - Gently fold white chocolate chips into the dough until evenly distributed.
07 - Scoop tablespoon-sized portions of dough onto prepared baking sheets, leaving 2 inches of space between each cookie.
08 - Bake for 10-12 minutes until edges are set but centers remain soft.
09 - Let cookies rest on baking sheet for 5 minutes, then transfer to wire rack to cool completely.