1. Preheat your oven to 350°F and line a baking sheet with parchment paper.

2. In a large bowl, use an electric mixer or a handheld whisk to beat the softened unsalted butter and cream cheese together until smooth and creamy.

3. Beat in the brown sugar and granulated sugar until the mixture is light and fluffy.

4. Add the egg and vanilla extract, and mix until well combined.

5. In a separate bowl, whisk together the all-purpose flour, baking soda, and salt. Gradually add the dry ingredients to the wet ingredients, mixing until a dough forms.

6. Gently fold the chocolate chips into the dough, ensuring they are evenly distributed.

7. Using a cookie scoop or spoon, drop scoops of dough onto the prepared baking sheet, spacing them about 2 inches apart.

8. Place the baking sheet in the preheated oven and bake for 10-12 minutes, or until the edges are golden brown and the centers are still slightly soft.

9. Remove the cookies from the oven and let them cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.