Preheat your oven to 350 degrees Fahrenheit.
In a medium-sized mixing bowl, cream together unsalted butter with both brown sugar and granulated sugar until light and fluffy, about 3-4 minutes.
Add in the eggs one at a time, mixing well after each addition. Don’t forget to pour in the vanilla extract too!
In a separate bowl, whisk together the all-purpose flour, baking soda, baking powder, and salt.
Gradually add the dry ingredients to the wet mixture and mix until just combined.
Gently fold in the crushed pretzels, crushed potato chips, toffee bits, and chocolate chips.
Using a 1-inch cookie scoop, scoop out the dough and drop it onto a parchment or silpat-lined cookie sheet.
Bake in the preheated oven for 7 to 8 minutes or until the edges are lightly golden.
Once baked, remove the cookie sheet from the oven and let it sit for a couple of minutes before transferring the cookies to a cooling rack.
Enjoy your freshly baked Kitchen Sink Cookies warm or store them in an airtight container for later.