01 - Whisk together flour, baking soda, and salt in a medium bowl. Set aside for later use.
02 - Beat softened butter, granulated sugar, and brown sugar in a large mixing bowl until light and fluffy, approximately 2-3 minutes.
03 - Mix in egg, vanilla extract, lemon zest, and lemon juice until thoroughly combined.
04 - Gradually incorporate dry ingredients into wet mixture, mixing just until flour disappears. Do not overmix.
05 - Gently fold blueberries into the dough. Refrigerate for at least 30 minutes to prevent excessive spreading during baking.
06 - Blend cream cheese and powdered sugar in a small bowl until completely smooth and no lumps remain.
07 - Heat oven to 350°F. Line two baking sheets with parchment paper.
08 - Scoop approximately 2 tablespoons of dough, flatten in palm, place 1 teaspoon cheesecake filling in center, and wrap dough around filling to seal completely.
09 - Place filled cookies on prepared baking sheets, leaving 2 inches of space between each cookie.
10 - Bake for 11-13 minutes until edges just begin to turn golden. Centers should still appear slightly soft.
11 - Let cookies rest on baking sheets for 5 minutes, then transfer to wire rack to cool completely before serving.