Pour the butterscotch chips into a microwaveable bowl.
Heat the chips in 30-second increments in the microwave, stirring after each 30 seconds.
Once the chips are melted and smooth, pour the chow mein noodles into the melted butterscotch about 1 cup at a time. Gently stir to cover the noodles in butterscotch.
Place parchment paper or wax paper on the counter. Dole out the mixture one heaping tablespoon at a time to form the haystacks.
Let them cool and harden. Enjoy!