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Home » Recipe Index » Confetti Squares – AKA Peanut Butter Marshmallow Squares

Confetti Squares – AKA Peanut Butter Marshmallow Squares

December 4, 2025 by AleenaDessert

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Confetti Squares – AKA Peanut Butter Marshmallow Squares are a delightful treat that everyone will love. These squares are perfect for parties, potlucks, or just a sweet snack at home. With their soft and chewy texture packed with peanut butter goodness, they offer a unique flavor that is both nostalgic and comforting. This no-bake dessert is not only simple to make but also incredibly versatile, making it an ideal choice for various occasions.

Why You’ll Love This Recipe

  • Super Simple: With just four ingredients and no baking required, these squares come together quickly.
  • Irresistible Flavor: The combination of peanut butter and butterscotch creates a sweet, creamy taste that satisfies any sweet tooth.
  • Fun and Colorful: Rainbow marshmallows add a fun pop of color, making these squares visually appealing for kids and adults alike.
  • Perfect for Any Occasion: Whether it’s a birthday party, holiday gathering, or just a family dessert night, these squares fit right in.
  • Make Ahead: These treats can be prepared in advance and stored in the fridge, ensuring you have something sweet ready at any time.

Tools and Preparation

To create your Confetti Squares seamlessly, having the right tools on hand is essential. Here’s what you’ll need for this recipe.

Essential Tools and Equipment

  • 8×8 or 9×9 inch pan
  • Medium saucepan
  • Mixing spoon
  • Aluminum foil

Importance of Each Tool

  • 8×8 or 9×9 inch pan: This size ensures your squares are the perfect thickness for easy cutting and serving.
  • Medium saucepan: A good quality saucepan helps melt the ingredients evenly without burning.
  • Mixing spoon: A sturdy mixing spoon allows you to combine ingredients thoroughly without breaking them down too much.
  • Aluminum foil: Lining your pan with foil makes it easy to lift out the squares once set.

Ingredients

To make Confetti Squares – AKA Peanut Butter Marshmallow Squares, gather the following ingredients:

For the Base

  • 1/4 cup unsalted butter
  • 1 cup peanut butter
  • 1 bag butterscotch chips (300g)

For the Mix-Ins

  • 4-5 cup rainbow marshmallows

How to Make Confetti Squares – AKA Peanut Butter Marshmallow Squares

Step 1: Prepare Your Pan

Line an 8×8 or 9×9 inch pan with aluminum foil and lightly grease it to prevent sticking.

Step 2: Melt Ingredients

In a medium saucepan over low heat:
1. Combine the unsalted butter, peanut butter, and butterscotch chips.
2. Stir occasionally until the mixture becomes smooth.

Step 3: Cool Mixture

Remove the saucepan from heat and let it cool to room temperature.

Step 4: Add Marshmallows

Stir in the rainbow marshmallows, making sure they are evenly distributed throughout the mixture.

Step 5: Pour into Pan

Pour the batter into your prepared pan. Spread it out evenly for uniform squares.

Step 6: Chill to Set

Place the pan in the fridge to harden for about 1-2 hours before cutting into squares.

Now you’re all set to enjoy your delicious Confetti Squares!

How to Serve Confetti Squares – AKA Peanut Butter Marshmallow Squares

Confetti squares are a delightful treat that can be enjoyed in various ways. Whether you’re hosting a party or simply indulging at home, these squares are versatile and appealing.

For a Sweet Snack

  • Enjoy with Coffee: Pairing confetti squares with a warm cup of coffee enhances the sweetness and adds a delightful contrast.
  • Kids’ Lunchbox Treat: Cut squares into smaller pieces for kids’ lunchboxes; they make a fun surprise addition!

As Party Favors

  • Cut into Fun Shapes: Use cookie cutters to create unique shapes for parties. This adds an element of fun for guests.
  • Decorate with Sprinkles: Adding colorful sprinkles on top can make them even more festive for celebrations.

With Ice Cream

  • Serve Over Vanilla Ice Cream: These squares on a scoop of vanilla ice cream create a delicious dessert combination.
  • Drizzle with Chocolate Sauce: A drizzle of chocolate sauce over the top adds richness and flavor.

For Movie Nights

  • Perfect Movie Snack: Keep them nearby during movie nights for a sweet treat that everyone will love.
  • Serve with Popcorn: Pair confetti squares with popcorn for a mix of sweet and salty flavors.
Confetti this …

How to Perfect Confetti Squares – AKA Peanut Butter Marshmallow Squares

To ensure your confetti squares turn out perfectly every time, consider these helpful tips.

  • Use Fresh Ingredients: Ensure your peanut butter and marshmallows are fresh for the best flavor and texture.
  • Cool Before Mixing: Let the melted mixture cool slightly before adding marshmallows to prevent them from melting.
  • Grease the Pan Well: Properly greasing the pan ensures easy removal, making it easier to cut into squares later on.
  • Chill Until Firm: Allow enough time in the fridge for the squares to set properly; this could take up to 2 hours.
  • Cut with a Warm Knife: Dip your knife in hot water before cutting to achieve clean edges on your squares.

Best Side Dishes for Confetti Squares – AKA Peanut Butter Marshmallow Squares

While confetti squares are delicious on their own, pairing them with side dishes can elevate your dessert experience. Here are some great options:

  1. Fresh Fruit Salad: A light fruit salad complements the sweetness of confetti squares nicely.
  2. Yogurt Parfait: Layer yogurt with granola and berries for a refreshing contrast to the rich flavors of the squares.
  3. Chocolate-Dipped Fruit: Strawberries or bananas dipped in chocolate offer a chocolaty touch that pairs well.
  4. Nutty Granola Bars: Homemade granola bars provide crunch and additional nutty flavor alongside your treat.
  5. Cheese Platter: A selection of cheeses balances sweetness; include mild options like Brie or Gouda.
  6. Ice Cream Sundae Bar: Set up an ice cream sundae station where guests can customize their toppings, including slices of confetti squares!

Common Mistakes to Avoid

Making Confetti Squares – AKA Peanut Butter Marshmallow Squares can be simple, but there are a few common mistakes to watch for.

  • Skipping the greasing step: Failing to grease the pan can lead to sticking. Always lightly grease the pan before pouring in the mixture.
  • Melting on high heat: Using high heat can cause the mixture to burn. Always melt the ingredients over low heat for a smooth texture.
  • Not letting it cool: Pouring marshmallows into a hot mixture can make them melt. Allow the melted mixture to cool to room temperature before mixing in marshmallows.
  • Overpacking the marshmallows: Using too many marshmallows can make squares overly chewy. Stick to 4-5 cups for the right texture.
  • Skipping refrigeration time: Cutting squares too early can result in messy pieces. Refrigerate for at least 1-2 hours to allow proper setting.

Refrigerator Storage

  • Store Confetti Squares in an airtight container.
  • They will last up to 1 week in the refrigerator.

Freezing Confetti Squares – AKA Peanut Butter Marshmallow Squares

  • Wrap individual squares in plastic wrap or foil.
  • Place wrapped squares in a freezer-safe bag or container.
  • These can be frozen for up to 3 months.

Reheating Confetti Squares – AKA Peanut Butter Marshmallow Squares

  • Oven: Preheat oven to 350°F, place squares on a baking sheet, and warm for about 10 minutes.
  • Microwave: Heat on medium power for 15-20 seconds until just warm.
  • Stovetop: Place in a non-stick skillet over low heat, stirring gently until warmed through.

Frequently Asked Questions

What are Confetti Squares – AKA Peanut Butter Marshmallow Squares?

Confetti Squares are a no-bake dessert made with peanut butter, butterscotch chips, and colorful marshmallows. They are soft, chewy, and incredibly sweet!

How do I customize Confetti Squares?

You can add nuts, chocolate chips, or even different types of cereal for added texture and flavor. Feel free to get creative!

Can I use crunchy peanut butter instead of creamy?

Yes! Crunchy peanut butter will add an interesting texture to your Confetti Squares while still providing that delicious peanut butter flavor.

Are these squares suitable for kids?

Absolutely! They are easy to make and fun for kids due to their colorful appearance and sweet taste.

Final Thoughts

Confetti Squares – AKA Peanut Butter Marshmallow Squares are not only delightful treats but also versatile desserts that can be customized based on your preferences. Their quick preparation makes them perfect for any occasion. Try this recipe today and enjoy experimenting with different mix-ins!

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Confetti Squares - AKA Peanut Butter Marshmallow Squares

Confetti Squares – AKA Peanut Butter Marshmallow Squares


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  • Author: Aleena
  • Total Time: 25 minutes
  • Yield: Approximately 16 servings 1x
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Description

Confetti Squares, also known as Peanut Butter Marshmallow Squares, are a delightful no-bake treat that combines the rich flavors of peanut butter and butterscotch with the fun of colorful rainbow marshmallows. These chewy squares make for the perfect dessert for any occasion, from birthday parties to cozy family gatherings. Easy to prepare with just four ingredients, they offer a nostalgic taste that appeals to both kids and adults alike. With their vibrant appearance and satisfying texture, Confetti Squares are not only a feast for the taste buds but also a visual delight.


Ingredients

Scale
  • 1/4 cup unsalted butter
  • 1 cup peanut butter
  • 1 bag (300g) butterscotch chips
  • 4–5 cups rainbow marshmallows

Instructions

  1. Line an 8×8 or 9×9 inch pan with aluminum foil and lightly grease it.
  2. In a medium saucepan over low heat, melt together the unsalted butter, peanut butter, and butterscotch chips until smooth.
  3. Remove from heat and allow to cool to room temperature.
  4. Gently fold in the rainbow marshmallows until evenly mixed.
  5. Pour the mixture into the prepared pan and spread evenly.
  6. Refrigerate for 1-2 hours until set before cutting into squares.
  • Prep Time: 15 minutes
  • Cook Time: 10 minutes
  • Category: Dessert
  • Method: No-Bake
  • Cuisine: American

Nutrition

  • Serving Size: 1 serving
  • Calories: 140
  • Sugar: 12g
  • Sodium: 65mg
  • Fat: 8g
  • Saturated Fat: 3g
  • Unsaturated Fat: 4g
  • Trans Fat: 0g
  • Carbohydrates: 15g
  • Fiber: 0g
  • Protein: 2g
  • Cholesterol: 5mg

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