Boo Berry Cereal Marshmallow Treats for Halloween

Updated on November 19, 2019
Heather Says profile image

Heather is happiest when taking a beautiful photo, creating something in her kitchen, or elbows-deep in a DIY project.

Boo Berry Ghost Squares are a cute party food idea for Halloween.
Boo Berry Ghost Squares are a cute party food idea for Halloween. | Source

Rate This Recipe!

3.4 stars from 5 ratings of Boo Berry Marshmallow Treats

It's Boo Berry Time!

Halloween is one of my favorite holidays—especially because it means I can get my paws on some of my favorite seasonal cereals. While my fondest memories are associated with Count Chocula cereal, I love all the monster mascots and their corresponding flavors. I picked up a box of each and decided to try to incorporate them into my fall baking ideas.

For this article, I decided to focus on Boo Berry Marshmallow Squares. This would be a fun addition to your list of Halloween food ideas or Halloween activities. Making these ghost squares is super easy, but if you're up for a challenge, try making a batch of each kind. This would be a really cool idea if you were having a large Halloween party, as the five different variations would yield 60 treats!

Halloween Party Snacks
Halloween Party Snacks | Source

Cook Time

Prep time: 15 min
Ready in: 15 min
Yields: 12 Spooky Squares


  • 6 cups Boo Berry Cereal
  • 5 and 1/2 cups Marshmallows, mini
  • 3 tablespoons Butter

Easy 8-Step Instructions

  1. Grease a 13x19-inch pan or dish. Cut a piece of wax paper or parchment paper large enough to cover pan. Set both aside.
  2. Place butter in large microwave-safe bowl. Melt in microwave on high for 45 seconds or until melted. Be careful, bowl may be hot!
  3. Add marshmallows. Toss them until coated with butter.
Melt Marshmallow-Butter Mixture
Melt Marshmallow-Butter Mixture | Source

4. Return bowl to microwave and cook for 45 seconds. Carefully give a stir and microwave for another 45 seconds or until marshmallows are completely melted and mixture is well blended.

5. Add cereal immediately and mix well.

Stir Boo Berry Cereal Into Marshmallow Mix
Stir Boo Berry Cereal Into Marshmallow Mix | Source
Sticky Marshmallow Spiderwebs!
Sticky Marshmallow Spiderwebs! | Source
Wait for Marshmallow Squares to Cool Before Cutting
Wait for Marshmallow Squares to Cool Before Cutting | Source

6. Scoop cereal and marshmallow mixture into greased pan, distributing as evenly as you can but working quickly.

7. Place parchment paper over cereal and press down until mostly even and well distributed. Peel off paper and discard.

8. Cut into squares when completely cooled.

Boo Berry Ghosts!

Easy Halloween Food Ideas
Easy Halloween Food Ideas | Source

Tips for Making Great Boo Berry Squares

  • A 10-oz bag of mini marshmallows is more than enough for this recipe.
  • Using six cups of Boo Berry leaves a little bit in the box so you can still enjoy a bowl of cereal!
  • Make sure your dish is greased first—this whole process goes very quickly and you have to work fast.
  • Be careful! Your microwavable dishes, butter and marshmallows may get very hot.
  • You can pop your dish in the refrigerator to cool your squares more quickly.

Boo Berry Marshmallow Squares Make Great Halloween Party Treats for Kids
Boo Berry Marshmallow Squares Make Great Halloween Party Treats for Kids | Source
General Mills Monster Cereals in Vintage-Style Boxes (From Left to Right: Count Chocula, Yummy Mummy, Boo Berry, Franken Berry and Frute Brute)
General Mills Monster Cereals in Vintage-Style Boxes (From Left to Right: Count Chocula, Yummy Mummy, Boo Berry, Franken Berry and Frute Brute) | Source

Did You Know?

Count Chocula and Franken Berry were introduced in 1971. At that time, they were the only chocolate and strawberry cereals. 1972 welcomed the next monster installment, Boo Berry—the very first blueberry-flavored cereal. Frute Brute was discontinued in 1982 and was later considered to be one of those most sought-after vintage cereal boxes. A box appeared in two of Quentin Tarantino's classics—Reservoir Dogs and Pulp Fiction. Yummy Mummy was discontinued in 1992. Luckily, they're baaaaaaaack!

Where Can I Buy the Monster Cereals?

Where can I buy Boo Berry cereal? These cereals are seasonal and can be found shortly before and during the Halloween season. I have purchased mine at Target for a number of years. They usually carry them in a food/pantry/snack aisle that is within their designated seasonal Halloween department. I usually see them displayed on an end-cap.

I get so excited when I see them and love when they come in the vintage-style reproduction boxes. You can also use this helpful General Mills Product Locator to find out where to buy Boo Berry cereal in your area.

What's your favorite monster cereal?

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What flavor would make the best Monster Marshmallow Squares?

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If you've never made marshmallow cereal treats, this would be a great time to start. Pick your favorite monster cereal and get cooking. These are always fun to make but the seasonal cereals make it more festive and special.

Kids can help and will love the stringy spiderwebs created by the ooey-gooey melted marshmallows. Make a batch of these spooky squares for your Halloween get-together or just for fun Fall baking! Which flavor would you choose for your monster squares?

Boo Berry Cereal Commercial

© 2013 Heather Lavelle


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    • Lynn Clark profile image

      Lynn Clark 

      4 years ago from Wilmington, NC

      YUM! Boo Berry is like a taste of childhood. This will be on my recipe list for this year for sure! Great article, love the detailed pictures and instructions.

    • Heather Says profile imageAUTHOR

      Heather Lavelle 

      6 years ago from Mesa, Arizona

      @ChitrangadaSharan-- Thanks for stopping by and commenting :)

    • ChitrangadaSharan profile image

      Chitrangada Sharan 

      6 years ago from New Delhi, India

      Very well presented hub, with explanatory pictures and instructions!

      Have heard of Halloween parties-----would be trying your tasty treats!

      Thanks for this wonderful hub!

    • Heather Says profile imageAUTHOR

      Heather Lavelle 

      6 years ago from Mesa, Arizona

      @fivesenses-- Thanks for stopping by and commenting! I feel very silly for thinking that Halloween was worldwide simply because of its roots and history. I'm glad I learned something ;) Thanks :)

      @randomcreative-- Thanks! I'm glad you stopped by and I always love your feedback :)

    • randomcreative profile image

      Rose Clearfield 

      6 years ago from Milwaukee, Wisconsin

      What a fun Halloween treat! Thanks for sharing.

    • fivesenses profile image


      6 years ago from new delhi

      Pretty cute and easy to make...though Halloween is not a big thing in my county and is just picking up in my city.


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