Confetti bars made with Spring colored M&M’s, white chocolate, Spring sprinkles, and gooey marshmallows. These easy dessert bars are sure to please a crowd!
Aren’t these Spring confetti bars so fun?! And perfect for Spring and Easter-time?
Growing up my mom often made these confetti bars for my siblings and me. They were definitely one of the favorite desserts (along with these carmelitas).
She would use a chocolate chip cookie base, loads of marshmallows, colorful sprinkles, miniature chocolate chips, and chocolate covered pretzels.
They are the best dessert bars! We’d always get excited when my mom would buy miniature chocolate chips or when chocolate covered pretzels would go on sell. Because that meant lots of confetti bars! My mom would hide the miniature chocolate chips and wouldn’t let us to eat them because they were ONLY for confetti bars.
Which was fine by us; as long as she kept good on her word to make them!
These confetti bars are similar, but a little bit different. The base is a white chocolate chip cookie dough that is baked for about 17-22 minutes. Then marshmallows, white chocolate chips, and M&M’s are thrown on top and these bars get baked for another 2-3 minutes. Everything gets all sorts of gooey and delicious. And then comes the time for sprinkles!
I used white chocolate to make these a lighter and more Spring-like dessert. You can definitely change out the white chocolate for milk, dark, or semi-sweet chocolate. Just make sure to change the chocolate chips in the base and for what is sprinkled on top.
More Spring Treats:
- Puppy Chow with Spring M&Ms
- Bunny Bait white chocolate snack mix
- FIVE Easter Treats with FREE printable bag toppers
- FOUR Simple Easter Treat Ideas (bird’s nest, bunny bum cookies, mini egg cakes, & bunny cinnamon rolls)
- 7 Layer Bars reader favorite
- Lemon Bars tangy and delicious

Confetti bars made with Spring colored M&M's, white chocolate, Spring sprinkles, and gooey marshmallows. These easy dessert bars are sure to please a crowd!
- 1/2 cup butter at room temperature
- 1/2 cup white sugar
- 1/4 cup + 1 tablespoon brown sugar
- 1 large egg at room temperature
- 1 teaspoon vanilla extract
- 1 and 1/2 cups white flour
- 1/2 teaspoon baking soda
- 1 teaspoon baking powder
- 1/2 teaspoon cornstarch
- 1/4 teaspoon salt
- 1 and 1/4 cups white chocolate chips separated
- 3 cups miniature marshmallows
- 3/4 cup Spring M&Ms
- 3 tablespoons sprinkles Spring colored
-
Preheat the oven to 350 degrees F.
-
Combine the room temperature butter with the white and brown sugar in a medium sized bowl.
-
Mix the butter and sugars together with hand beaters or in a stand mixer until creamy and fluffy. Mix in the egg and vanilla and beat until just incorporated.
-
In a separate bowl, combine the flour, baking soda, baking powder, cornstarch, and salt. Stir together and slowly add the dry ingredients to the wet ingredients.
-
Mix until combined.
-
With a wooden spoon, stir in one cup of the white chocolate chips. Press the cookie dough into a 9 x 13 pan that has been sprayed with nonstick spray.
-
Bake the cookie dough for 17-22 minutes or until the edges are lightly browned.
-
Remove and immediately top with the miniature marshmallows and M&M's. Return to the oven for 1-2 minutes or until the marshmallows become puffy.
-
Remove and sprinkle the remaining 1/4 cup white chocolate chips and sprinkles over the bars.
-
Let cool completely and then cut with a wet knife.
Joanne says
March 21, 2014 at 6:49 amThese are basically what i want my spring to look like! Love all the pastels and going with white chocolate was definitely spring-perfect!
Chloe @ foodlikecake says
March 21, 2014 at 7:10 amThese are so cute and spring-like! I love the combination of marshmallows, white chocolate, and m&ms 🙂 Looks amazing
Taylor @ Food Faith Fitness says
March 21, 2014 at 7:17 amOh my gosh…these are ridiculously cute! AND SO DELICIOUS. Marshmallows, chocolate, M & Ms and sprinkles are my life so these must happen. Pinned!
Kathi @ Deliciously Yum! says
March 21, 2014 at 8:30 amThese are the cutest bars ever – I love the tiny bunny sprinkles!! Also, topping these with mini marshmallows is such a genius idea. I bet it makes them extra ooey gooey :). How could I not pin this one?? Hope you have the most amazing weekend ahead, dear!
Melanie @ Carmel Moments says
March 21, 2014 at 8:32 amSo fun Chelsea! There’s only one problem. I may not get any because the kids would be all over these.
Jamie | Jamie's Recipes says
March 21, 2014 at 9:33 amI love the Spring colored M&M’s so gentle and colorful. I love that these are bars so I can more easily control portion size 🙂
Jaren (Diary of a Recipe Collector) says
March 21, 2014 at 9:36 amThese are Spring perfection! So excited to see those soft pastel colors in recipes.
Kelly - LEFT SIDE OF THE TABLE says
March 21, 2014 at 10:31 amYou sure have a talent for coming up with yummy treats, Chelsea! Spring colored M&Ms bring the perfect touch. It’s nice that this recipe reminds you of a favorite treat growing up 😉 Have a wonderful Friday! Thanks for sharing!
Beth @ bethcakes says
March 21, 2014 at 10:46 amOh my gosh, these are so adorable, Chelsea! I love love love the bright colors of the sprinkles and M&Ms! Love that you put puffy marshmallows on top of these too. These are definitely super cute for spring! 🙂
[email protected] Soulful Twist says
March 21, 2014 at 2:58 pmThese look amazing, I’m loving all the pretty colors!
Tina @ Tina's Chic Corner says
March 21, 2014 at 3:54 pmOh my gosh, I’m obsessed with these bars!!! They’ve totally got me in the mood for spring AND now I’m craving to eat these. 🙂 They will be a perfect treat for the Easter dessert table!
Cate @ Chez CateyLou says
March 21, 2014 at 4:31 pmThese are so perfect for spring / easter! I’ve never made confetti bars before, but I really want to try them now. So festive and delicious!
Jennifer @TheRebelChick says
March 21, 2014 at 4:52 pmOh my goodness, these look amazing!!
Consuelo @ Honey & Figs says
March 21, 2014 at 6:53 pmOh wow these have to be the most adorable bars I’ve ever seen! Those bunny sprinkles – I’m dying from a cuteness overload – I NEED THEM IN MY LIFE. Ahhh and the bars sound so delicious too!
Happy Friday! xx
Dina says
March 21, 2014 at 7:11 pmthese definitely get me in the mood for spring!
Anna (Hidden Ponies) says
March 21, 2014 at 9:43 pmAdoorrrrable, and such a perfect little sugar rush! I love those pastel M & Ms too 🙂
[email protected] says
March 21, 2014 at 11:06 pmThese are so pretty Chelsea!! I am SO ready for Easter!! 🙂
Mariah says
March 22, 2014 at 11:05 pmThese look delicious!
Meg @ The Housewife in Training Files says
March 23, 2014 at 7:53 amOh marshmallows and a sugar cookie base?! My weakness!
Dorothy @ Crazy for Crust says
March 23, 2014 at 9:22 pmThese are SO pretty!!!
Suruchi says
March 23, 2014 at 11:48 pmHi there, thanks for such a great recipe.. I am going to make these for my girls’ spring party. Thanks again !!
Wendy @ www.mamasblogcentral.com says
March 24, 2014 at 12:39 pmThese look so yummy 🙂 I might have to make these for Easter. I would love for you to party at T.G.I.F. Linky Party
Made From Pinterest says
March 25, 2014 at 1:20 amThese are so cute and looks so YUMMY!
Blair @ The Seasoned Mom says
March 25, 2014 at 6:40 amHi Chelsea! These bars are so pretty — they would be the perfect dessert on a kids’ Easter table! Thanks so much for sharing — I’ve pinned them!
Cynthia L says
March 25, 2014 at 12:01 pmI love bars and these look fantastic! Thanks for sharing this great recipe at the In and Out of the Kitchen Link Party! Always glad to see your great recipes!
chelseamessyapron says
March 26, 2014 at 9:18 amThanks Cynthia! Thanks for hosting the party 🙂
Kelly says
March 25, 2014 at 3:24 pmLove how fun and festive these bars are – they look incredible with the colorful sprinkles and pastel M&M’s and totally perfect for Easter 🙂
Cindy @ Hun... What's for Dinner? says
March 25, 2014 at 8:12 pmOh my gosh do these ever look good! You had me at white chocolate and gooey marshmallows. Thanks for sharing at Simple Supper Tuesday.
Karly says
March 30, 2014 at 7:26 pmThese bars are fabulous! Thanks for linking up with What’s Cookin’ Wednesday!
chelseamessyapron says
March 30, 2014 at 9:39 pmThanks Karly! And thanks for hosting! I hope you’ve had a wonderful weekend 🙂
La Cuisine d'Helene says
April 11, 2014 at 10:03 amWow! They are beautiful. Thanks for sharing.
chelseamessyapron says
April 11, 2014 at 11:01 pmThank you!
Ilene says
July 1, 2014 at 10:25 pmhey guys one quick question are these good>.
Heather says
March 28, 2015 at 10:59 pmThese look amazing!! Do they freeze well? thanks
chelseamessyapron says
March 29, 2015 at 9:05 pmI haven’t tried, but because of the marshmallows I don’t think they would do well being frozen and then thawed
Melissa says
March 30, 2015 at 1:39 pmdid you use salted or unsalted butter? Thanks. Can’t wait to make these!
chelseamessyapron says
April 2, 2015 at 9:27 pmYou can use either one. If you use salted just omit the added salt.
Cristina says
April 1, 2015 at 3:01 pmcan you refrigerate these immediately after baking?
chelseamessyapron says
April 1, 2015 at 3:07 pmI wouldn’t recommend doing that
Heather says
April 3, 2015 at 10:09 amThese are so adorable and look sooo yummy! Do you think these would be okay on Easter if I made them today (Friday)?
chelseamessyapron says
April 4, 2015 at 11:35 pmI believe they are the best the day of because of the marshmallows. The day after is okay but I wouldn’t stretch them too much longer than that.
Angela says
April 4, 2015 at 9:32 amThese are so cute! I’m making them as an Easter treat for the kids. I make white chocolate chip bars all the time- the confetti addition will be fun! With the marshmallows on top, are they best made and served on the same day or are they fine to to make a day ahead? Thanks.
chelseamessyapron says
April 4, 2015 at 11:33 pmI like them best the day of!
Eden Passante says
March 15, 2016 at 5:35 pmSo adorable! Love all the pastels!
chelseamessyapron says
March 15, 2016 at 5:57 pmThank you Eden! 🙂
Melonie says
March 20, 2016 at 10:20 pmHow well do these keep? Do they stick together due to the marshmallow? Can they be individually wrapped or will they stick to the plastic? Sorry for so many questions. I’m a bus driver and like to make my kiddos holiday treats.
Thank you
chelseamessyapron says
April 4, 2016 at 11:04 amYou sound like the best bus driver ever! They unfortunately don’t keep too well, kind of past there prime even by the end of the second day unfortunately 🙁 They do wrap pretty well though and don’t stick too bad to plastic because of the M&M’s and sprinkles on top kind of push down the marshmallows.
Carrie says
March 23, 2016 at 6:21 amThese were so delicious and adorable! I made them last year for Easter and shared them on my blog this week! Thanks for the recipe! http://www.happilyfrazzled.com/super-sweet-easter-treats/
chelseamessyapron says
March 23, 2016 at 10:35 amOh this makes my day! So fun to see a review on your blog! Thank you Carrie 🙂
Kelly says
March 26, 2016 at 2:45 pmThese are so cute! Is the cookie bar supposed to be doughy or more of a crisp cookie?
So fun for kids to help decorate!
chelseamessyapron says
March 28, 2016 at 9:43 amWe prefer it more doughy, but bake longer for a more well done cookie. They shouldn’t be crisp 🙂 Yes so fun for kids to get involved!!
Shenan says
April 6, 2017 at 10:28 pmThey are delicious!! Super easy and fun! Love the colors and they are just so yummy!
chelseamessyapron says
April 6, 2017 at 10:52 pmSo happy you enjoyed them! Thank you so much for the comment 🙂
Shenelle says
April 23, 2017 at 6:18 amI 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
chelseamessyapron says
April 24, 2017 at 9:27 amSo happy this was a hit! 🙂 Thanks for the comment!
Molly Walker says
March 30, 2018 at 4:37 pmThese 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?
chelseamessyapron says
March 30, 2018 at 4:57 pmThe dough sits great overnight! Cover it tightly and you’ll be good to go 🙂 Enjoy!
Bethany Woznicki says
March 31, 2018 at 6:01 pmI couldn’t get the dough to stretch into a 9×13 pan :/ just wasnt enough to stretch it without there being gaps. it didnt look like the video lol. used an 8×8, hope its okay.
chelseamessyapron says
April 4, 2018 at 2:11 pmI hope you were able to get it to work out ok in the 8 x 8 pan 🙂 It does stretch very thin in the 9 x 13 pan!
Ali says
March 26, 2019 at 4:18 amThese weren’t a love for me. The brownie base was kind of bland and most of the marshmallow separated from the brownie when I went to cut them up.
chelseamessyapron says
May 7, 2019 at 2:34 pmSo sorry you didn’t love these!
Pat says
April 11, 2019 at 9:06 amI noticed you said that the base would bake for 13-15 minutes but the recipe says 17-22 minutes so which time is correct?
chelseamessyapron says
May 7, 2019 at 2:22 pm17-22 minutes 🙂