Confetti squares are one of those nostalgic treats that show up at birthday parties, school bake sales, and somehow disappear from the plate in about five minutes. They're chewy, sweet, chocolatey, and packed with colorful marshmallows that make them look like little candy clouds.
Honestly, I love recipes like this because they're ridiculously easy. Melt, stir, chill, done. No oven, no complicated steps. Just a simple dessert bar that kids go crazy for. If you enjoy quick treats like my Easy Puff Pastry Cinnamon Twists or my Easy Homemade Puff Pastry Pop Tarts, this one will absolutely earn a permanent spot in your recipe box.
Quick Answer
Confetti squares are a no-bake dessert made by melting peanut butter, butter, and chocolate, then folding in colorful mini marshmallows before chilling into chewy dessert bars.
Time: about 15 minutes + chilling
Texture: chewy, soft, candy-bar like
Flavor: peanut butter chocolate with sweet marshmallows
Best for: parties, bake sales, kids snacks
Method: melt, mix, chill, slice
Jump to:
The ingredients
Butter
Creates the base for melting everything smoothly and helps the bars set nicely.
Smooth Peanut Butter
Adds that classic nutty flavor and keeps the mixture creamy.
Semi-Sweet Chocolate Chuncks
Balances the sweetness of the marshmallows.
Rainbow Mini Marshmallows
These give confetti squares their name. They add color and soft chewy texture.
For the ingredients quantities go to the recipe card below
Steps-by-step Instructions for the confetti squares
Step 1: Melt the Base
Add butter, peanut butter, and chocolate chips to a saucepan over low heat.
Stir slowly until everything melts together into a smooth glossy mixture.
Tip: keep the heat low so the chocolate doesn't burn.
Step 2: Let It Cool Slightly
Remove the pan from heat and let the mixture sit for about 2-3 minutes.
This step is important. If the mixture is too hot, the marshmallows will melt completely.
Step 3: Add Marshmallows
Fold the rainbow mini marshmallows into the chocolate mixture.
Gently stir until they are fully coated but still hold their shape.
You want them to stay fluffy.
Step 4: Transfer to Pan
Spread the mixture into a parchment-lined 8ร8 pan.
Press lightly with a spatula to level the surface.
Step 5: Chill
Refrigerate the pan for about 1 hour until firm.
Step 6: Slice
Lift the bars from the pan and cut into squares.
Try not to eat them all immediately. Although honestly... good luck with that.
Sophie Tips
I've made these more times than I can count. A few little tricks make a big difference.
Let the chocolate cool slightly
If it's too hot, the marshmallows shrink and disappear.
Use parchment paper
Makes removing and slicing the bars much easier.
Don't overmix
Too much stirring melts the marshmallows.
Chill fully before cutting
Warm bars will fall apart.
Variations
Butterscotch Confetti Squares
Replace the chocolate chips with butterscotch chips.
Peanut Butter Lovers
Add ยฝ cup peanut butter chips.
Festive Holiday Bars
Use red and green marshmallows for Christmas trays.
Crunchy Version
Add ยฝ cup Rice Krispies cereal.
Serving Ideas
Confetti squares are perfect when you need a quick crowd dessert.
Serve them:
- on a Christmas cookie platter
- at kids birthday parties
- for school bake sales
- as an easy after-school treat
- at potlucks and BBQs
I also like to keep a few squares in the freezer for when the sweet tooth hits at night.
Storage Tips
Room temperature:
Store in an airtight container for 2 days.
Refrigerator:
Keeps fresh for up to 1 week.
Freezer:
Freeze for up to 2 months. Thaw at room temperature.
FAQ
The chocolate mixture was likely too hot. Let it cool a few minutes before mixing the marshmallows.
Yes. Substitute almond butter or sunflower butter for a nut-free version.
They probably didn't chill long enough. Refrigerate at least one hour before slicing.
Didn't find the answer you're looking for?
Ask AI to answer based on this specific recipe:
Confetti Squares
Equipment
- Medium saucepan
- Spatula
- Mixing spoon
- 8ร8 baking pan
- Parchment paper
Ingredients
- ยฝ cup butter
- ยฝ cup smooth peanut butter
- 1 cup semi-sweet chocolate chips
- 5 cups rainbow mini marshmallows
Instructions
- Line an 8ร8 baking dish with parchment paper and set aside.
- Place the butter, peanut butter, and chocolate chips in a saucepan over low heat. Stir continuously until fully melted and smooth.
- Remove the pan from the heat and allow the mixture to cool slightly for about 2-3 minutes.
- Add the mini marshmallows and gently fold them into the chocolate mixture until evenly coated.
- Transfer the mixture to the prepared pan and spread evenly with a spatula.
- Refrigerate for at least 1 hour or until the bars are firm.
- Lift the bars from the pan using the parchment paper and cut into squares.
Notes
โข If the bars are too soft, chill another 20 minutes before slicing.
โข For cleaner cuts, warm your knife with hot water and wipe dry.
โข Store bars in the fridge if your kitchen is warm.
Sophie Viau says
These easy confetti squares are chewy no-bake dessert bars made with peanut butter, chocolate, and colorful mini marshmallows. Perfect for bake sales, parties, and quick sweet treats.