Preheat your oven to 350°F (175°C) and line your baking sheets with parchment paper.

In a large mixing bowl, beat together the unsalted butter and cream cheese until light and fluffy. Gradually add in the granulated sugar and brown sugar, continuing to blend until fully incorporated. Mix in the egg and vanilla extract until smooth.

In a separate medium bowl, whisk together the all-purpose flour, baking powder, baking soda, and salt until well combined.

Slowly add the dry ingredient mixture to the wet ingredients, stirring gently to combine. Fold in the semi-sweet chocolate chips.

Roll the dough into golf ball-sized balls and place them on the prepared baking sheets, leaving about 2 inches between each cookie.

Bake in the preheated oven for 10-12 minutes, until the edges are light golden and the centers remain slightly soft.

Let the cookies cool on the baking sheet for about 5 minutes before transferring to a wire rack to cool completely.