Cream together the butter, sugar, and brown sugar using a hand mixer or stand mixer.
Mix in the eggs, flour, cornstarch, salt, baking soda, and vanilla until combined, scraping the sides of the bowl as needed.
Then fold in the potato chips and butterscotch chips and mix until combined.
Use a cookie scoop to scoop the dough. Form them into balls and place on a baking mat or parchment paper. Press extra butterscotch chips into the top for a pretty look.
Refrigerate the cookie dough for at least 30 minutes.
Preheat the oven to 350º Fahrenheit. Bake for about 13-15 minutes, or until golden brown.
Cool on the cookie sheets for 5 minutes, then cool completely on a wire rack.
Store in an airtight container.
The calories shown are based on the recipe making 36 cookies, with 1 serving being 1 cookie. Since different brands of ingredients have different nutritional information, the calories shown are just an estimate. **We are not dietitians and recommend you seek a nutritionist for exact nutritional information.**