Confetti Bars are my momโs famous dessert bars, packed with chocolatey M&Mโs, gooey marshmallows, melty white chocolate, and plenty of sprinkles!
authorโs note
The Dessert My Mom Was Always Asked to Bring!
Iโve shared quite a few of my momโs famous desserts over the years, the ones she was always asked to bring to parties and family events. One recipe even got requested so much she made it for my sisterโs wedding reception!
My personal favorite growing up was always her Carmelitas. (Theyโre still my all-time favorite bar.) But a close second were her Funfetti bars. They were basically everything-but-the-kitchen-sink dessert bars with a cookie base, marshmallows, M&Mโs, chocolate covered pretzels, and sprinkles on top.
These Confetti Bars are inspired by those! They start with a soft white chocolate cookie base and get topped with marshmallows, pastel M&Mโs, and sprinkles. Iโm so obsessed with them! These are perfect for Spring, but you can easily swap the sprinkle and M&M colors to match any holiday or event.
Featured Comment
They are delicious!! Super easy and fun! Love the colors and they are just so yummy!
โ Shenan
Confetti Bars Ingredients
| Ingredient | Letโs Chat About It |
|---|---|
| Butter & brown sugar | Melt the butter and let it cool slightly before mixing so the batter doesnโt turn greasy. Soft, fresh brown sugar gives the bars the best texture. |
| Egg & vanilla extract | Bring the egg to room temp so it mixes smoothly into the batter. |
| Flour & salt | Stir in gently and stop once the flour disappears to keep the bars soft and tender. |
| White chocolate chips & marshmallows | Use good-quality white chocolate for the best flavor. Soft, fresh marshmallows make the best Confetti Bars. |
| Pastel M&Mโs & sprinkles | Swap colors to match any holiday or event. |
How To Make Confetti Bars
- Prep pan: Heat oven to 350ยฐF and line an 8 x 8-inch pan with parchment.
- Mix batter: Whisk butter, sugar, egg, vanilla, and salt; fold in dry ingredients.
- Bake: Spread in pan and bake until edges are lightly golden and center is set.
- Add toppings: Add marshmallows, bake briefly, then finish with remaining mix-ins.
- Cool & cut: Let bars set, then slice.
Chelseaโs Top Tip
Let The Bars Set
Let bars cool completely: Leave parchment overhang so the bars can be lifted out easily, and wait 1 to 2 hours before cutting so the marshmallows donโt pull away from the cookie layer.
Storage
Because of the marshmallows, these Confetti Bars are best within 1 to 2 days. Once cooled, store the bars in an airtight container at room temperature. If stacking, place parchment or wax paper between layers so the marshmallows donโt stick.
More Spring Treat Ideas:
Desserts
The Best Key Lime Pie Recipe
Desserts
M&M Flower Pretzels
Desserts
The BEST Lemon Bars Recipe
Quick And Easy
Bunny Bait
Confetti Bars
Video
Equipment
- Hand mixer or stand mixer
Ingredients
- 8 tablespoons unsalted butter melted & slightly cooled
- 1 cup light brown sugar gently packed
- 1 large egg
- 1 teaspoon vanilla extract
- 1/4 teaspoon salt
- 1 cup flour
- 1 cup white chocolate chips divided
- 1-1/2 cups miniature marshmallows
- 1/2 cup pastel M&Mโs or use regular M&Ms
- 1 tablespoon sprinkles see note 1, I use pastel or Spring colors
Instructionsย
- Preheat oven to 350ยฐF (175ยฐC). Spray an 8 x 8-inch pan with cooking spray and line with parchment paper, leaving an overhang for easy removal.
- Melt the butter in a microwave-safe bowl. Let cool for about 5 minutes.
- Scrape all of the melted butter into a large bowl. Add the brown sugar and whisk until the mixture looks like wet sand. Add the egg, vanilla, and salt and whisk briskly until smooth and creamy. Fold in the flour and 3/4 cup white chocolate chips with a spatula until no dry streaks remain. The batter will be thick.
- Transfer the batter to the prepared pan and smooth the top with a spatula.
- Bake for 25 to 27 minutes, or until the edges are lightly golden and the center is set.
- Sprinkle the marshmallows over the top and gently press them into the bars. Return the pan to the oven for 1 minute.
- Remove from the oven and gently press the marshmallows down so they stick. Immediately sprinkle the remaining 1/4 cup white chocolate chips, M&Mโs, and sprinkles over the top.
- Let the bars sit for 1 to 2 hours before cutting.
Recipe Notes
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
Why did you change the recipe? How can I get the old one back
Hey Rachel, I just added the old recipe to the Notes section of the recipe card under Note 2.
I made these last week and it called for different amounts of ingredients (1 egg and 1 egg yolk for example) and made a 9ร13. Can you point me to that recipe? They turned out so good
Hey Jennifer, I just added the old recipe to the Notes section of the recipe card under Note 2.
These look amazing and perfect for Easter!! Would be so easy to make the dough the night before and pop in the oven the next day! Does anyone know if the dough sits well overnight?
The dough sits great overnight! Cover it tightly and youโll be good to go ๐ Enjoy!
I made this in a pie dish as a second birthday cake for brother yesterday. Everyone loved it. I loved the chewy cookie texture. I will surely be hitting the gym hard this week. Lol
So happy this was a hit! ๐ Thanks for the comment!