Preheat your oven to 350°F (175°C) and prepare a baking sheet by lining it with parchment paper.

In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar until the mixture is light and fluffy. This should take about 2-3 minutes.

Beat in the eggs, one at a time, followed by the vanilla extract. Continue mixing until everything is well combined.

In a separate bowl, whisk together the flour, baking soda, and salt. Gradually incorporate the dry ingredients into the wet mixture, mixing just until combined. Be careful not to overmix!

Fold in the butterscotch chips until evenly distributed throughout the dough.

Use a cookie scoop to drop rounded tablespoons of dough onto the prepared baking sheet, leaving ample space between each cookie.

Bake for 10-12 minutes, or until the edges are lightly golden brown. The centers may seem slightly underbaked—this is fine as they will continue cooking on the tray.

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