Preheat the Oven: Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper for easy clean-up.
Mix the Wet Ingredients: In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar until the mixture is light and fluffy. Add in the eggs, one at a time, and mix. Finally, stir in the vanilla extract until everything is well combined.
Combine Dry Ingredients: In another bowl, whisk together the flour, baking soda, and salt. Gradually add the dry ingredients to the wet mixture, stirring until just combined.
Add Butterscotch Chips: Gently fold in the butterscotch chips, making sure they are evenly distributed throughout the dough.
Scoop and Bake: Using a cookie scoop or tablespoon, drop rounded balls of dough onto the prepared baking sheet, leaving space between each cookie. Bake in the preheated oven for about 10-12 minutes, or until the edges are golden brown and the centers are set.
Cool: Let the cookies cool on the baking sheet for a few minutes before transferring them to wire racks to cool completely. Enjoy your warm, melty butterscotch cookies!