Begin by melting the butterscotch chips. You can do this on the stove top or you can melt them in the microwave. If you do melt them in the microwave , make sure to set the timer for 2 minute increments, so that they don't get burned.
Once the chips have fully melted then you stir in the 1/2 cup of peanut butter. Now stir in the marshmellows, and chow mein noodles.
Now that everything is combined, use a teaspoon to measure out your candy. Set the candy on wax paper and let them set up over night. And that's it!