The chow mein noodles look almost too delicate when they first hit the warm butterscotch mixture. A few gentle folds later, each crisp curl is tucked into a glossy coating, ready to hold its shape as it chills. That’s the satisfying little trick behind Holiday Haystacks: a handful of pantry ingredients turns into a tray of crunchy, sweet clusters without turning on the oven.
I like this version because the peanuts bring a salty crunch while the red and green M&M’s give each mound its holiday color. The butterscotch and creamy peanut butter melt together into a thick coating that clings to the noodles instead of running off them. Keep the mixture together as you work, and you’ll get clusters with plenty of crunch in every bite.
Kitchen Note
I don’t let the microwave run continuously here. Stir after every 30-second interval; the warmth in the bowl helps smooth out the last few chips without scorching the mixture.
Save these Holiday Haystacks for a festive treat with crisp chow mein noodles, salty peanuts, and a butterscotch-peanut butter coating.
Why the Coating Must Stay Thick Enough to Grab Every Noodle
These clusters depend on a coating that’s thick, not pourable. The butterscotch chips set as they cool, while the peanut butter keeps the mixture easy to fold around the noodles and peanuts. Together, they need to cover the dry ingredients well enough to hold a mound without pooling at the bottom of the bowl.
If the coating feels thick, resist the urge to thin it with extra peanut butter or another liquid. A looser mixture can slide down through the noodle tangle, leaving some pieces bare and making the clusters harder to shape. The quantities here balance the coating with the crisp noodles and peanuts, so fold steadily until the pieces look evenly covered, then portion the mixture while it’s still warm and workable. That balance is what gives each haystack its craggy shape and keeps it together once chilled.
What Gives Holiday Haystacks Their Crunch, Flavor, and Color
- Butterscotch chips — They bring the main flavor and help the coating firm up after chilling. An everyday baking-chip brand works well; there’s no need to hunt for specialty chips. Avoid substituting a pourable butterscotch sauce, which won’t set the clusters the same way.
- Creamy peanut butter — A smooth, conventional creamy peanut butter blends evenly with the melted chips. If you need a swap, creamy almond butter stirred until uniform is the closest option; it gives the coating a different, slightly nuttier taste. Avoid using a jar with a layer of separated oil.
- Crispy chow mein noodles — Their thin, airy shape gives the haystacks their signature crunch and plenty of edges for the coating to cling to. Start with noodles that are crisp rather than stale or soft. For a gluten-free adaptation, use crispy gluten-free chow mein-style noodles; details are in the variations below.
- Salted roasted peanuts — These add a firm, savory bite that balances the sweet coating. Fresh, crisp nuts matter more than a premium label. Roasted salted cashews make a good swap if you want a milder, buttery crunch.
- Red and green M&M’s — The candy shells bring color and a little extra chocolate crunch. Candy-coated chocolate pieces in another color work in the same way, so you can match the batch to a different celebration.
How to Melt, Coat, and Set the Haystacks Without Losing Their Crunch
Line the Pans and Melt the Coating Gently
Line two rimmed baking sheets with parchment before you start melting anything. Put the butterscotch chips and creamy peanut butter in a large microwave-safe bowl, then heat at 50% power in 30-second intervals, stirring after each one. It should take about 1 1/2 to 2 minutes for the mixture to become smooth. Stop when no unmelted chips remain and the coating looks glossy, not scorched or grainy.
Fold Until the Noodles and Peanuts Are Covered
Add the crispy chow mein noodles and salted roasted peanuts to the warm coating. Fold gently from the bottom of the bowl so you bring the mixture up over the dry pieces instead of crushing them with a hard stir. Keep going until the noodles and peanuts look evenly coated, with no large dry patches. If you scoop before everything is coated, the first mounds may be heavy with coating and the last ones mostly bare.
Portion, Decorate, and Chill Until Firm
Drop 2-tablespoon mounds onto the lined pans, leaving about 1 inch between them. Press a few red and green M&M’s onto each mound while the coating is still soft enough to hold them. Refrigerate the pans for 30 minutes, until the clusters are firm. They’re ready when a mound lifts cleanly from the parchment instead of slumping at the edges.
Three Ways to Adapt Holiday Haystacks for Your Table
Make a gluten-free batch
Replace the regular chow mein noodles with the same weight of crispy gluten-free chow mein-style noodles. Check that the noodles are crisp and sturdy enough to hold a coating; a soft noodle won’t give you the same airy crunch.
Trade butterscotch for semisweet chocolate
Use semisweet chocolate chips in place of the butterscotch chips for a deeper, less sweet chocolate coating. Keep the peanut butter in the mixture, then shape and chill the clusters the same way.
Make smaller, snack-size clusters
Scoop smaller portions for bite-size haystacks, keeping a little space between them on the parchment. You’ll get more pieces from the batch, and the smaller clusters are easy to pick up from a cookie tray. Chill until each one is firm before moving them.
Storage and Reheating
- Refrigerator: Store in an airtight container for up to 1 week. The clusters stay firm when cold and soften a little if left out.
- Freezer: Freeze in an airtight container for up to 2 months, separating layers with parchment so the candy pieces don’t stick together. Thaw in the refrigerator while still covered.
- Reheating: These don’t need reheating. Serve chilled for the firmest crunch, or let them sit briefly at room temperature for a softer bite.
Answers to the Holiday Haystack Questions That Come Up Most
Holiday Haystacks
Ingredients
Equipment
Method
- Line two rimmed baking sheets with parchment paper.
- Combine the butterscotch chips and peanut butter in a large microwave-safe bowl.
- Microwave at 50% power in 30-second intervals, stirring after each, until smooth, about 1 1/2 to 2 minutes.
- Fold in the chow mein noodles and peanuts until evenly coated.
- Drop 2-tablespoon mounds onto the prepared baking sheets, spacing them about 1 inch apart.
- Press a few M&M’s onto each mound.
- Refrigerate for 30 minutes, until firm.
