Preheat oven to 350°F (175°C). Line a baking sheet with parchment paper.
Beat softened butter, cream cheese, brown sugar, and granulated sugar until fluffy. Mix in the egg and vanilla.
In a separate bowl, whisk flour, baking soda, and salt, then add to the wet mixture. Stir until just combined.
Fold in chocolate chips until evenly mixed.
Scoop dough onto the baking sheet, spacing 2 inches apart. Bake for 10–12 minutes, until edges are golden and centers are soft.
Cool on the pan for 3–5 minutes, then transfer to a rack. Enjoy warm or at room temperature.