Instructions:* 1. *Preheat oven* to 375°F (190°C). 2. *Cream the butter and sugars:* In a medium bowl, beat together the softened butter, granulated sugar, and brown sugar until creamy. 3. *Add the egg and vanilla:* Mix in the egg and vanilla extract until well combined. 4. *Mix dry ingredients:* In a separate bowl, whisk together the flour, baking soda, and salt. 5. *Combine:* Gradually add the dry ingredients to the wet mixture, mixing until just combined. 6. *Add chocolate chips:* Stir in the chocolate chips. 7. *Shape cookies:* Drop rounded tablespoons of dough onto a baking sheet lined with parchment paper, spacing them about 2 inches apart. 8. *Bake:* Bake for 9-11 minutes, until the edges are golden brown. 9. *Cool:* Let the cookies cool on the baking sheet for a few minutes, then transfer to a wire rack to cool completely.