Step 1: Prepping Your Workspace
Because this recipe moves at lightning speed, preparation is key. Line two large baking sheets with parchment paper or silicone baking mats. Having your station ready prevents the melted butterscotch mixture from hardening in the bowl before you have a chance to shape your cookies. Actionable Tip: Use wax paper if you don't have parchment; the non-stick surface is crucial for an easy release.Step 2: Melting the Sweet Base
In a large, microwave-safe bowl, combine your butterscotch chips and creamy peanut butter. Microwave on medium power (50%) in 30-second increments. After every 30 seconds, remove the bowl and stir vigorously with a rubber spatula. It should take about 1.5 to 2 minutes total to achieve a glossy, smooth, velvety liquid. Pro Tip: Do not rush this on high heat, or the butterscotch will seize and turn grainy!Step 3: Folding in the Crunch
Remove the smooth, melted mixture from the microwave. Immediately, pour in your dry chow mein noodles and the salted peanuts (if using). Gently fold the mixture using your spatula, turning from the bottom of the bowl over the top. You want to ensure every single noodle is generously coated in the sweet, peanut-buttery gold without crushing the noodles into dust.Step 4: Portioning the Haystacks
Using a medium cookie scoop or two soup spoons, drop clusters of the coated noodles onto your prepared baking sheets. Aim for about 2 tablespoons per cookie, gently nudging them into a classic "haystack" or mound shape. Personalized touch: While the coating is still warm and sticky, sprinkle a tiny pinch of flaky sea salt over the top of each mound.Step 5: Setting to Perfection
Allow the baking sheets to sit at room temperature for about 30 to 45 minutes until the cookies are completely firm to the touch. Actionable Tip: If you are in a rush, place the trays in the refrigerator for 15 minutes. The cold air rapidly solidifies the fats in the peanut butter and chips, setting the cookies instantly.