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No-Bake Peanut Butter Marshmallow Cereal Bars

These bars are a hybrid of some of my favorite bars .
No-bake , Chewy , Gooey , Caramely , with Peanut Butter , Special K , Cereal , Marshmallows .

And they’re so good . And so easy .
Ever since I made the Chewy Peanut Butter and Chocolate Cereal Bars , I’ve been thinking about how to remake them in a slightly new way.

These bars are based heavily on those, but instead of using Rice Krispies, I used Special K . You could also use Corn Flakes, Frosted Flakes, Rice Krispies, or a similar vegan or gluten-free cereal.
Instead of topping them with chocolate-peanut butter swirls , I stirred in marshmallows . I love marshmallows in bars because they lend so much gooey-and-chewy texture .
Plus, marshmallows are more well-behaved in the Caribbean heat and don’t melt everywhere like chocolate.

No-bake bars like these are always nice so you don’t have to heat up your house , especially this time of year.
And they’re made in one bowl in the microwave , and take less than 5 minutes to stir together. Usually it’s the fast and easy recipes people seem to make anyway, and you can add this one to the Fast and Easy list .

There’s no butter in the recipe, but you’d never guess it because they’re exceedingly buttery-tasting and rich .
The microwave-made sauce drenches the cereal in a sweet, brown sugary, caramel-vanilla, peanut buttery syrup and holds the bars together.

I love bars that I can really sink my teeth into , and these deliver.
They’re dense, wonderfully soft, with tons of chewiness and texture from the cereal and marshmallows.

Peanut butter has a way of making everything taste so good and decadent .
Even Special K.

Ingredients
- ▢ 1 heaping cup creamy peanut butter , use Jif, Skippy, or similar; do not use natural or homemade peanut butter
- ▢ ½ cup light corn syrup , light colored, not lite
- ▢ ½ cup granulated sugar
- ▢ ¼ cup light brown sugar , packed
- ▢ 1 tablespoon vanilla extract
- ▢ 3 ½ cups Special K cereal , Corn Flakes may be subsituted, or use about 3 cups Rice Krispies cereal
- ▢ about 5 ounces marshmallows , half of one standard bag; I used large but mini are ideal
Instructions
- Line an 8-inch square pan with aluminum foil leaving overhang, spray with cooking spray; set aside.
- In a large microwave-safe bowl, combine 1 heaping cup peanut butter, corn syrup, sugars, and heat on high power for 1 minute to melt.
- Stop to stir. Mixture will be on the granular side, this is okay.
- Return bowl to microwave and heat for 1 more minute on high power.
- Stir in the vanilla.
- Stir in the cereal and marshmallows. The marshmallows will melt to some extent, but not fully.
- Turn mixture out into prepared pan, packing it down somewhat firmly with a spatula, and smooth the top.
- Cover pan with a sheet of foil (to prevent fridge smells), and place pan in fridge to set up for about 2 hours or until set, before lifting out with foil overhang, slicing, and serving.
- Bars will keep airtight at room temperature for up to 1 week, in the refrigerator for up to 2 weeks, or in the freezer for up to 6 months.
- Adapted from Chewy Peanut Butter and Chocolate Cereal Bars
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
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Thanks for the entries in the 3-Piece Baking Set and Gluten-Free Dough Giveaway and the $100 My Sweet Muffin Giveaway
What’s your favorite no-bake or fast and easy dessert?

No-Bake Peanut Butter Marshmallow Cereal Bars
Ingredients
- 1 heaping cup creamy peanut butter use Jif, Skippy, or similar; do not use natural or homemade peanut butter
- ½ cup light corn syrup light colored, not lite
- ½ cup granulated sugar
- ¼ cup light brown sugar packed
- 1 tablespoon vanilla extract
- 3 ½ cups Special K cereal Corn Flakes may be subsituted, or use about 3 cups Rice Krispies cereal
- about 5 ounces marshmallows half of one standard bag; I used large but mini are ideal
Instructions
- Line an 8-inch square pan with aluminum foil leaving overhang, spray with cooking spray; set aside.
- In a large microwave-safe bowl, combine 1 heaping cup peanut butter, corn syrup, sugars, and heat on high power for 1 minute to melt.
- Stop to stir. Mixture will be on the granular side, this is okay.
- Return bowl to microwave and heat for 1 more minute on high power.
- Stir in the vanilla.
- Stir in the cereal and marshmallows. The marshmallows will melt to some extent, but not fully.
- Turn mixture out into prepared pan, packing it down somewhat firmly with a spatula, and smooth the top.
- Cover pan with a sheet of foil (to prevent fridge smells), and place pan in fridge to set up for about 2 hours or until set, before lifting out with foil overhang, slicing, and serving.
- Bars will keep airtight at room temperature for up to 1 week, in the refrigerator for up to 2 weeks, or in the freezer for up to 6 months.
- Adapted from Chewy Peanut Butter and Chocolate Cereal Bars
Nutrition
No-Bake Peanut Butter Marshmallow Cereal Bars - AverieCooks.com