Place butterscotch chips and peanut butter in a large, microwave safe bowl.
Heat in the microwave for approximately 2 minutes.
Use potholder to remove from microwave and mix ingredients with a large spoon until combined.
Add the chow mein noodles and mix well. It's okay to break up some of the chow mein noodles.
Drop by the spoonful onto a wax paper or parchment paper lined cookie sheet.
Optional: Add sprinkles or other decorations to tops of cookies while they're still hot. Press down gently so the decorations set with the cookies.
Place in refrigerator to cool until the cookies are set.
This recipe makes 10 to 20 cookies based on the size of your spoonfuls.
These cookies keep longer in the refrigerator but can be kept at room temperature.