01 -
Heat oven to 175°C (350°F). Line a baking sheet with parchment paper or a silicone baking mat.
02 -
In a medium bowl, whisk together flour, baking soda, baking powder, and salt. Set aside.
03 -
In a large mixing bowl, beat butter, cream cheese, granulated sugar, and brown sugar until light and fluffy. Add egg and vanilla extract, beating until smooth and well combined.
04 -
Gradually incorporate the dry ingredients into the wet ingredients, mixing until just combined. Gently fold in blueberries, white chocolate chips, and lemon zest, taking care not to crush the berries.
05 -
Using a cookie scoop or spoon, drop rounded tablespoons of dough onto the prepared baking sheet, spacing them about 5 cm (2 inches) apart.
06 -
Bake for 12-15 minutes, until edges are lightly golden and centers are set. Allow cookies to cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.