Melt the butterscotch chips in the microwave in 30-45 second increments. Stir between each heating.

Place chow mein noodles and chopped pecans in a large bowl. Once the butterscotch is melted, pour it over the chow mein candy and pecans and stir until evenly coated.

Using a spoon or a small ice cream scoop, drop even amounts of the mixture onto wax paper. If the haystacks are loose, press them together lightly with your hands. They will harden in just a few minutes; refrigerate until ready to serve.