Popcorn Balls with Marshmallows
These popcorn balls are the kind of simple, nostalgic treat I reach for when I want something quick, shareable, and crowd-pleasing. They come together fast, use common pantry ingredients, and the finished balls are soft, slightly chewy, and delightfully sticky in the best way. No complicated candy thermometer or long candy-making technique—just a hot marshmallow mixture that coats the popcorn and sets into handheld bites.
I like to make a batch when friends pop by, for classroom parties, or when I want a no-fuss dessert to tuck into a picnic basket. The recipe scales easily: make a single batch for a small gathering or double it if you know you’re sending some home with folks. A few careful steps—lined sheet, buttered hands, and gentle pressing—are all it takes to shape tidy, compact balls that hold their shape well.
Below you’ll find a clear shopping list and ingredient notes, step-by-step directions taken straight from the method that works, and practical tips for swapping ingredients, troubleshooting, and storing your popcorn balls. Read through once, then dive in—you’ll be popping and shaping in under 30 minutes.
Shopping List
Keep this short shopping list handy when you head to the store. Most items are pantry staples, but grab good-quality marshmallows and a neutral spreadable butter for shaping. If you plan any swaps, see the Vegan & Vegetarian Swaps section below before you shop.
- Popcorn (to yield about 20 cups popped)
- Light corn syrup
- Butter (for the mixture and extra softened butter for shaping)
- Cold water
- Powdered sugar
- Mini marshmallows or large marshmallows
Ingredients
- 20 cups popped popcorn — the base; use fresh popped popcorn and pick out any large unpopped kernels before mixing.
- 3/4 cup light corn syrup — provides sweetness and helps the coating set without becoming brittle.
- 1/4 cup butter plus 2 tablespoons softened butter for shaping — 1/4 cup melts into the sauce; reserve the 2 tablespoons to butter your hands so the popcorn balls don’t stick while you shape them.
- 2 teaspoons cold water — helps with the consistency of the hot marshmallow mixture as it heats.
- 2 1/2 cups powdered sugar — referenced in the instructions; adds structure and a little chew to the coating.
- 1 cup mini marshmallows or 14 large marshmallows — the primary binder; choose mini marshmallows for quicker melting or 14 large if you don’t have minis.
Popcorn Balls with Marshmallows — Do This Next
- Line a baking sheet with wax paper, spray the paper with nonstick cooking spray, and set the sheet aside.
- Put 20 cups popped popcorn into a very large mixing bowl and set aside.
- In a medium saucepan combine 3/4 cup light corn syrup, 1/4 cup butter, 2 teaspoons cold water, the powdered sugar called for in the ingredient list, and the marshmallows (use 1 cup mini marshmallows or 14 large marshmallows).
- Heat the mixture over medium-high heat, stirring almost constantly, until it comes to a boil and all marshmallows are completely melted and the mixture is smooth. Do not leave unattended to avoid burning.
- Remove the saucepan from the heat. Immediately drizzle the hot marshmallow mixture evenly over the popcorn.
- Using a heatproof spatula or wooden spoon, fold and toss the popcorn gently but thoroughly until the popcorn is evenly coated with the marshmallow mixture.
- Butter your hands with the 2 tablespoons of softened butter reserved for shaping (butter your whole palms and fingers). Working carefully—the mixture will be hot—take portions of the coated popcorn and shape into balls about the size of a tennis ball, squeezing gently to compact them.
- Place each formed popcorn ball on the prepared baking sheet. Reapply softened butter to your hands as needed and continue shaping until you have about 16–20 popcorn balls.
- Let the popcorn balls cool and set at room temperature until they are no longer hot and hold their shape. Wrap individually in plastic wrap to store at room temperature, or serve immediately.
Why You’ll Love This Recipe
This is a low-stress, high-impact recipe. It delivers the crunchy, airy texture of popcorn with a chewy, sweet exterior—perfect for kids and adults alike. The method skips candy thermometers and complex sugar stages; the marshmallows do the heavy lifting, melting into a glossy binder that sets firm enough to hold a ball but still tender to bite into.
It’s also flexible. You can dress the popcorn before shaping (sprinkle in chocolate chips, candy, or chopped nuts), or leave it classic and simple. The hands-on shaping is satisfying and fast—make a batch while a movie is warming up or as a quick party favor that looks homemade and thoughtful.
Vegan & Vegetarian Swaps
Vegetarians: standard marshmallows may contain gelatin (which is not vegetarian), so if you follow a strict vegetarian diet, look for marshmallows labeled vegetarian or made with plant-based gelling agents.
Vegans: replace the marshmallows with vegan marshmallows and swap both the 1/4 cup butter and the 2 tablespoons used for shaping with a vegan butter or a neutral vegetable shortening. Check the light corn syrup—most brands are vegan, but if you prefer, use a vegan-friendly syrup alternative that behaves similarly (note: different syrups can change final texture slightly).
Essential Tools for Success
- Very large mixing bowl — gives enough room to toss popcorn without spilling the hot coating.
- Medium saucepan — use a pan with a heavy base to promote even heating and reduce the chance of scorching.
- Heatproof spatula or wooden spoon — for folding the hot marshmallow mixture into the popcorn.
- Baking sheet lined with wax paper — keeps formed balls from sticking as they set.
- Cooking spray and room-temperature butter — to prevent sticking while shaping.
- Oven mitts or heatproof gloves (optional) — if you prefer extra protection when shaping hot mixture.
Problems & Prevention
Gummy or Too Soft Balls
If the popcorn balls don’t set firmly, the marshmallow mixture may not have been heated enough or the ratio of binder to popcorn is low. Make sure the marshmallows are fully melted and the mixture reaches a boil while stirring. Work efficiently while the coating is warm—if it cools too much it becomes hard to bind.
Mixture Burns or Scorches
Heat over medium-high, but don’t walk away. Stir almost constantly and remove from heat as soon as the marshmallows are fully melted and the mixture is smooth. A burned batch will taste bitter; if that happens, start over with a clean pan.
Popcorn Falls Apart
When shaping, press firmly but gently to compact the popcorn. Buttering your hands well prevents sticking and helps you apply steady pressure. If the balls crumble, you may need to use slightly larger portions of the marshmallow mixture or press a bit more to compact the interior.
Make It Diet-Friendly
These are an indulgence by nature, but you can make small adjustments to lighten them up: shape smaller balls to control portions, or substitute light corn syrup with a lower-calorie syrup designed for baking (note that texture will change). You can also cut back slightly on the powdered sugar if desired, but remember this sugar contributes to structure.
Another approach: add airier mix-ins like crisped rice cereal in place of some popcorn for a lighter bite, or fold in nuts for protein and a more satisfying small portion. Keep in mind swaps will change texture and may require a touch more binder.
If You’re Curious
Why does this work? Marshmallows contain sugar and gelatin (or vegan alternatives in specialty marshmallows) that melt and create a sticky, stretchy syrup. When mixed with powdered sugar and corn syrup, the mixture becomes glossy and tacky enough to coat popcorn and set into a solid form as it cools.
Timing matters. The mixture needs to be hot enough to melt entirely and coat each kernel, but you must shape while warm to get compact, neat balls. If you wait until the coating is cool, it becomes rigid and difficult to press together.
Save It for Later
Storage is simple. Once set, wrap each popcorn ball individually in plastic wrap to keep them fresh and prevent them from sticking together. Stored at room temperature in an airtight container, they typically keep well for several days. Avoid humid environments—moisture will soften the exterior and make them sticky.
Freezing is possible if you want to make a big batch ahead: wrap tightly and place in a freezer-safe container. Thaw at room temperature while still wrapped to prevent condensation from making the surface soggy.
Common Questions
Can I add mix-ins like chocolate or nuts? Yes. Add smaller, dry mix-ins (chocolate chips, candies, chopped nuts) after you’ve coated the popcorn but before you shape. If you add anything that melts easily, do so sparingly and shape quickly so it doesn’t affect the set.
How big will this batch make? The directions suggest shaping about 16–20 balls roughly the size of a tennis ball. If you make smaller or larger balls, the count will change.
Can I make these ahead? Yes. They store well wrapped at room temperature for several days and can be frozen for longer storage. See the Save It for Later section for details.
What if I don’t have light corn syrup? Corn syrup helps with texture and chew. Substitutes vary in behavior; experimenting with other syrups can work but may change setting and chewiness. If you must substitute, test a small batch first.
Ready to Cook?
Get your popcorn popped and your butter softened—this is one of those recipes where a little focus yields big rewards. The method is forgiving and fast: line the sheet, melt the mixture, coat the popcorn, shape with buttered hands, and enjoy. Wrap extras individually for sharing, and don’t forget to label any vegan swaps if you’re serving a crowd.
If you try a variation—add-ins, colors, or a vegan version—I’d love to hear how it turned out. Happy shaping!
Popcorn Balls with Marshmallows
Ingredients
Equipment
Method
- Line a baking sheet with wax paper, spray the paper with nonstick cooking spray, and set the sheet aside.
- Put 20 cups popped popcorn into a very large mixing bowl and set aside.
- In a medium saucepan combine 3/4 cup light corn syrup, 1/4 cup butter, 2 teaspoons cold water, the powdered sugar called for in the ingredient list, and the marshmallows (use 1 cup mini marshmallows or 14 large marshmallows).
- Heat the mixture over medium-high heat, stirring almost constantly, until it comes to a boil and all marshmallows are completely melted and the mixture is smooth. Do not leave unattended to avoid burning.
- Remove the saucepan from the heat. Immediately drizzle the hot marshmallow mixture evenly over the popcorn.
- Using a heatproof spatula or wooden spoon, fold and toss the popcorn gently but thoroughly until the popcorn is evenly coated with the marshmallow mixture.
- Butter your hands with the 2 tablespoons of softened butter reserved for shaping (butter your whole palms and fingers). Working carefully—the mixture will be hot—take portions of the coated popcorn and shape into balls about the size of a tennis ball, squeezing gently to compact them.
- Place each formed popcorn ball on the prepared baking sheet. Reapply softened butter to your hands as needed and continue shaping until you have about 16–20 popcorn balls.
- Let the popcorn balls cool and set at room temperature until they are no longer hot and hold their shape. Wrap individually in plastic wrap to store at room temperature, or serve immediately.
Notes
I have a stir crazy popcorn maker and I used 1 cup of unpopped popcorn and that was enough for this and I had some left over.
I also used butter on my hands, because it’s what we did with my grandma.
You have to be careful when shaping as the candy mixture is very hot.
