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Spring OREO O’s Cereal Marshmallow Bars

Celebrate springtime with these colorful OREO O's® cereal marshmallow bars! This recipe combines the taste of your favorite cookie with sweet marshmallows. Follow these steps to learn how to make this sweet treat!

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15 mins
prep time
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1 hr 40 mins
total time


Spring OREO O’s Cereal Marshmallow Bars

Prep Time: 15 minutes
Total Time: 1 hour 40 minutes


  • 5 cups OREO O's® cereal
  • 4 ½ cups mini marshmallow (seperated)
  • 6 tablespoons butter
  • ¼ cup sprinkles plus more for decoration
  • 1 cup blue candy melts


  • Mix 5 cups of OREO O's® cereal and ½ cup mini marshmallows in a large mixing bowl and set aside.
  • Melt 6 tablespoons of butter.
  • Once the butter has melted, add in 4 cups of mini marshmallows and stir until mixture is smooth.
  • Combine OREO O's® cereal mix with marshmallow butter mix and stir until combined.
  • Add ¼ cups sprinkles and lightly fold into mixture.
  • Line and grease a 9 x 9 inch glass pan.
  • Pour mixture into pan and spread out evenly. Top with additional sprinkles to your liking.
  • Allow bars to harden for about 1 hour before cutting into 16 even squares. Remove from pan before decorating.
  • Decorate by melting 1 cup of blue candy melts (or white chocolate) and placing in a piping bag (or zip lock bag with the corner cut off). Drizzle melted candy over the top of the bars and top with additional sprinkles to your liking.
  • Allow candy coating to dry before serving.
  • Enjoy!

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It’s the stuff breakfast dreams are made of! Chocolatey, crunchy O-shaped bites made with the OREO® cookie taste you love and a rich creme coating. This flavor combination gives you a bowlful of cookie milk that tastes so good you’ll finish it off with a smile.

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