Lay two large strips of foil or parchment paper on the counter. Measure out the peanut butter.

In a large, microwave safe bowl, add the butterscotch chips and white baking chips. Add a spoonful of peanut butter from the one cup measured out, into the bowl with the butterscotch and white chips. Set the remaining peanut butter aside.

In the microwave, melt the chips in 15-second increments, stopping to stir the mixture at every 15-second increment. It takes approximately 60-90 seconds to melt the chips. Once the chips have melted, remove the bowl from the microwave and stir in the peanut butter. Once all the ingredients are combined, fold in the chow mien noodles a little at a time, ensuring all the noodles are throughly coated in the candy mixture.

Use a standard sized cookie scoop to drop piles of cookies on the strips of foil. Option to immediately top with sprinkles.

Let cookies set for 1-2 hours on the counter before transferring to an airtight container for storage.