Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until the mixture is light and fluffy.
Beat in the eggs one at a time, ensuring each is fully incorporated. Add the vanilla extract and mix well.
In a separate bowl, whisk together the flour, baking soda, and salt. Gradually add this dry mixture to the wet ingredients, mixing until just combined.
Gently fold in the butterscotch chips. Be generous; it's where the flavor shines!
Drop rounded tablespoons of cookie dough onto your prepared baking sheet, leaving space between each
Pop the cookies into the preheated oven and bake for 10-12 minutes, or until the edges are lightly golden but the centers are still soft.