Pumpkin Spice Marshmallow Treats

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Who needs Rice Krispies when you can have Pumpkin Joe’s O’s? These marshmallow treats are a fun fall twist on a classic that you’ll love.

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Pumpkin Season has officially begun at Trader Joe’s. And what better way to celebrate than with these easy, no-bake Pumpkin Spice Marshmallow Treats.

If you’ve been in lately (and who hasn’t), you may have noticed that good ol’ Joe has pumpkin-ized just about everything you can think of. Joe’s O’s were not left out. This cereal is delicious on its own, but why not give it a little extra love?

Pumpkin Spice Marshmallow Treats

Like the classic cereal treats we all grew up with, these Pumpkin Spice Marshmallow Treats are easy to make and are full of ooey gooey goodness. Only 4 ingredients, and simple enough to make that your kids can do it for you while you kick back with a pumpkin spice latte or two.

You’re going to want to make these as much as you can before Pumpkin Season is over.

Pumpkin Spice Marshmallow Treats

What You’ll Need for Pumpkin Spice Marshmallow Treats

  • Pumpkin Joe’s O’s
  • 1 package of mini marshmallows
  • 1/2 stick of butter
  • Pumpkin spice


  • Don’t overcook the marshmallow mixture or your treats will turn into rocks.
  • Use a larger pot than you think you will need to make it easier to stir the treat mixture well. Nobody wants clumpy treats!
  • It’s easier (and less messy) to press the treats into the pan if you cover your hand in plastic wrap.

Pumpkin Spice Marshmallow Treats

Who needs Rice Krispies when you can have Pumpkin Joe's O's? These marshmallow treats are a fun fall twist on a classic that you'll love.
Prep Time10 mins
Resting Time1 hr
Total Time1 hr 10 mins
Course: Dessert
Cuisine: American
Keyword: Cereal Bars, Cereal Squares, Cereal Treats, Marshmallow, Marshmallow Bars, Marshmallow Squares, Marshmallow Treats, Pumpkin, Pumpkin Spice


  • 4 Tablespoons (half a stick) Unsalted Butter
  • 10 Ounces Bag of Mini Marshmallows
  • ¾ Teaspoons Pumpkin Spice
  • 6 Cups Pumpkin Joe's O's


  • Grease a 9" x 13" baking pan.
  • Melt the butter in a VERY large pot over medium heat. Continue cooking the butter until it turns a light brown color and begins to smell like caramel.
  • Add the marshmallows and pumpkin spice and stir just until the marshmallows are melted. Remove from the heat immediately.
  • Add the O's and stir until the marshmallow mixture is completely and evenly distributed.
  • Pour the mixture into the pan and press it out to cover the pan with your hand. Let it rest until completely cooled, about an hour.
  • Cut into squares or fun shapes.

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