St. Patrick’s Day Popcorn is a fun, festive treat! It’s a colorful mix of M&M’s, Lucky Charms marshmallows, sprinkles, and popcorn, all coated in white chocolate.

Try some other St. Patrick’s Day Treats next!

Overhead image of the St. Patrick's Day Popcorn

St. Patrick’s Day Popcorn

My most popular St. Patrick’s Day recipe is Leprechaun Bait, and with the holiday just around the corner, I knew I wanted to test another variation—a popcorn snack mix version. Let me tell you, it did not disappoint!

My kids are popcorn fanatics, but when you add creamy white chocolate, colorful M&M®’s, and Lucky Charms® marshmallows, they’re completely hooked.

The combination of salty popcorn and sweet, indulgent toppings makes this snack mix absolutely irresistible.

Ingredient shot-- image of all the ingredients used in this recipe

How To Make St. Patrick’s Day Popcorn:

  1. Popcorn: Fresh popcorn tastes the best and stays crispy; remove any unpopped kernels.
  2. White chocolate: Microwave in 30-second steps, stirring often so it doesn’t burn.
  3. Large bowl: Mix popcorn and chocolate in a large bowl to mix without making a mess.
  4. Add mix-ins quickly: Stir in M&M’s, marshmallows, and sprinkles right after the chocolate, so everything gets coated.
  5. Let chocolate harden: Spread the mix on parchment or a baking mat to harden, or refrigerate to speed it up.

Quick Tip

To get rid of unpopped kernels, put the popcorn in a large bowl, cover with a rack, flip, and shake. The unpopped kernels will fall out. Scoop out the rest of the popcorn and continue with the recipe.

Process shots of St. Patrick's Day Popcorn-- images of the white chocolate being poured over the popcorn

St. Patrick’s Day Popcorn Ingredients

  • Popcorn: Pre-popped popcorn saves time. If you prefer to pop your own, use these packets, kernels in a popcorn machine, or stovetop.
  • White Chocolate: Use melting wafers or white chocolate chips for a better melt.
  • Oil: Add a bit of oil or shortening to the chocolate before melting to smooth it out.
  • M&M’s: I use 3-different kinds of M&Ms, you can use one or two types.
  • Lucky Charms Marshmallows: You can pick these out of the cereal or buy just the marshmallows online.
  • Sprinkles: Optional, but green sprinkles add a fun crunch and color!
Process shots--images of the M&M's and marshmallows being poured over the treat

Storage

St. Patrick’s Day Popcorn Storage

For the best flavor, enjoy this popcorn fresh within 1-2 days.

Store it in a sealed container at room temp.

The white chocolate makes it soggy over time, so it’s best to eat it soon. To keep it crispy longer, put it in the freezer.

Up-close overhead image of the St. Patrick's Day Popcorn, ready to be enjoyed

More Delicious Snack Mix Recipes

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St. Patrick’s Day Popcorn

This St. Patrick’s Day Popcorn is a festive, sweet-salty snack! Popcorn gets coated in white chocolate and mixed with M&M’s, Lucky Charms marshmallows, and sprinkles. Perfect for parties or just a fun treat to share!
Prep Time: 20 minutes
Total Time: 20 minutes
Servings: 12 servings

Equipment

Ingredients

  • 10 cups popped popcorn unbuttered, see note 1
  • 2 cups white chocolate chips or white chocolate melts
  • 1-1/2 teaspoons vegetable oil or canola oil
  • 1/2 cup regular M&M’s pull out the greens, see note 2
  • 1/2 cup pretzel M&M’s or crunchy cookie M&M’s, pull out the greens
  • 1/3 cup miniature M&M’s pull out the greens
  • 1 cup Lucky Charms marshmallows see note 3
  • 1 to 2 tablespoons green sprinkles optional

Instructions 

  • Line an extra-large sheet pan with foil, parchment paper, or a silicone liner. Set aside. In a very large bowl, measure and add the popped popcorn. Separate out all the green M&M’s and marshmallows from the cereal. Measure and set aside.
  • Place the white chocolate chips and oil in a microwave-safe bowl. Microwave in bursts of 30 seconds, stirring between each burst until chocolate is melted and smooth. Be patient to avoid burning the chocolate. Once smooth and fully melted, use a spatula to scrape it out and over the popcorn. Working quickly, toss together to coat in the white chocolate.
  • Immediately add in all the M&M’s and the Lucky Charms marshmallows. Toss again to coat in the chocolate. Dump mixture onto prepared pan, space in one layer, and immediately sprinkle with sprinkles (if using).
  • Let the popcorn harden at room temperature or in the fridge until it becomes solid. Once solid, break it into pieces and enjoy!

Video

Recipe Notes

Note 1: Pre-popped popcorn saves time but costs more. If you’d rather pop your own, use lightly salted microwave popcorn, a popcorn machine, or stovetop kernels. Whatever you use, measure out 10 cups and add a pinch of salt if needed.
Note 2: Mixing M&M® flavors makes this treat extra tasty, but using one or two types work great too. My favorite combo is plain, miniature, and either pretzel or crunchy cookie M&M’s.
Note 3: You can either use Lucky Charms marshmallows from the Leprechaun Trap cereal or the original cereal. (I used the Leprechaun Trap cereal in the pictures.)
Storage: Store any leftovers in an airtight container at room temperature. For the best flavor, eat within 1–2 days.

Nutrition

Serving: 1serving | Calories: 328kcal | Carbohydrates: 41g | Protein: 4g | Fat: 16g | Saturated Fat: 9g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Trans Fat: 0.05g | Cholesterol: 10mg | Sodium: 47mg | Potassium: 116mg | Fiber: 2g | Sugar: 32g | Vitamin A: 79IU | Vitamin C: 0.3mg | Calcium: 87mg | Iron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Meet Chelsea


Hello, and welcome to Chelseaโ€™s Messy Apron! Iโ€™m Chelsea, the recipe developer, food photographer, and writer behind the site. Iโ€™m passionate about creating simple, reliable, and delicious recipes that anyone can make.

Thanks for stopping byโ€”I hope you find something delicious to make!

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