Peanut Butter Blondies with M&M’s — Soft and chewy with rich peanut butter flavor and studded with M&M’s!! Perfect for Valentine’s Day events or parties! EASY, one bowl, no mixer recipe that everyone loves!!
Easy Peanut Buter M&M’s Blondies
If you need an easy dessert to bring to a Valentine’s party or want to surprise someone special with a Valentine’s Day treat, this is the recipe for you.
No one will be able to resist soft, buttery blondies with rich peanut butter flavor and studded with Valentine’s Day M&M’s.
The blondies are fast, easy, made in one bowl, and you don’t even need a mixer. I used my infamous blondie base recipe and with 30+ versions and counting, it never lets me down. It won’t let you down either.
These peanut butter blondies are so soft and buttery with the perfect amount of chewiness. They are nicely flavored with vanilla, which just complements the buttery dough.
Biting into the crunchy chocolate M&M’s is a great contrast to the otherwise tender blondies and it feels like finding a little Valentine’s Day treasure.
What’s in Peanut Butter Blondies?
To make this easy Valentine dessert, you’ll need:
- Unsalted butter
- Peanut butter
- Light brown sugar
- Vanilla extract
- All-purpose flour
How to Make Peanut Butter Blondies
Melt the butter, then stir in the egg, peanut butter, sugar and vanilla. Add the flour and mix until just combined, then gently fold in the M&M’s.
Turn the batter into a parchment paper-lined 8×8-inch baking dish. Top with additional M&M’s, then bake until done.
Can I Use Natural Peanut Butter?
No, you need to use a traditional peanut butter from a brand like Jif or Skippy. Natural peanut butter is very oily and tends to separate in baked goods.
Can I Double This Recipe?
Yes! Double the ingredients and bake in a 9×13-inch pan.
Tips for Making Peanut Butter Blondies
I used milk chocolate M&M’s, but you can use any kind you’d like. If you don’t have M&M’s on hand, try using chocolate chips or chunks instead.
To make these for another holiday gathering, simply use different colored M&M’s!
You must let these bars cool for an hour before slicing them. If you try to slice them too soon, the bars will fall apart.
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Valentine Peanut Butter Blondies with M&M's
Soft and chewy with rich peanut butter flavor and studded with M&M's!! EASY, one bowl, no mixer recipe that everyone loves!!
- 1/2 cup unsalted butter (1 stick), melted
- 1/2 cup peanut butter
- 1 large egg
- 1 cup light brown sugar, packed
- 1 tablespoon vanilla extract
- 1 cup all-purpose flour
- 3/4 cup M&M's, divided
- Preheat oven to 350F. Line an 8-by-8-inch baking pan with aluminum foil, spray with cooking spray; set aside.
- To a large, microwave-safe bowl add the butter and heat on high power to melt, about 1 minute.
- Wait momentarily before adding the egg so you don’t scramble it. Add the peanut butter, egg, brown sugar, vanilla, and whisk until smooth.
- Add the flour and stir until just combined, don’t overmix.
- Add 1/2 cup M&Ms and stir gently to combine.
- Turn batter out into prepared pan, smoothing the top lightly with a spatula.
- Add the remaining 1/4 cup M&M’s to the top of the batter for visual appeal. Press them down lightly so they adhere.
- Bake for about 22 to 26 minutes, or until done. A toothpick inserted in the center should come out clean, or with a few moist crumbs, but no batter.
- Allow blondies to cool in pan for at least 1 hour before slicing and serving.
Peanut butter: I use Jif, Skippy or similar; natural PB can separate and/or be too oily.
M&M's: I used plain milk chocolate but you can use peanut, dark, etc.
Storage: Blondies are best fresh but will keep for up to 1 week in an airtight container at room temp or up to 4 months in the freezer.
Adapted from Peanut Butter Blossom Cookie Bars.
Amount Per Serving: Calories: 400Total Fat: 22gSaturated Fat: 10gTrans Fat: 0gUnsaturated Fat: 9gCholesterol: 50mgSodium: 94mgCarbohydrates: 47gFiber: 2gSugar: 32gProtein: 6g
More Valentine’s Dessert Ideas:
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I wrote a Peanut Butter Cookbook with 100+ recipes using Peanut Butter!
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This recipe is awesome! So moist and chewy, and contains two of my favorite things: peanut butter and chocolate. Got rave reviews from family, friends and colleagues.
Glad they got rave reviews and turned out awesome!
Oh I half to try these peanut butter blondie’s with M&Ms they look delicious I love anything made with peanut butter
Hi Averie! Could I double this and bake in a larger pan? Would 9×13 work?
Yes that would be great!
Made as is, these were a hit! New staple blondie in this house! Love your original base with mixins too!
Thanks for trying the recipe and glad it came out great for you! Glad it’ll be a new staple blondie!
You know I’d be all over these!! What a great recipe…and I’m a sucker for the pink and red M&Ms!
Cute colored M&Ms just make me smile :)
hey girl -this looks so yummy!
Thanks Averie Peanut Butter is so good.
Yes it sure is!
I LOVE this cookie base. Wondering if the chocolate cherry M&Ms that somehow found their way into my cart would be good in this …. maybe I’ll just have to buy the regular milk chocolate kind! :)
I think that sounds like a great plan!
All of these valentine-friendly recipes are making me so happy. They’re so bright and smile-inducing. And I don’t know if you know this about me, but I prefer blondies to brownies – AND I am a self-professed lover of all desserts beige (caramel, pb, penuche, etc). So basically this is perfect for me.
Thanks for saying they’re so bright and smile-inducing :)
Yum!! I just know these have to taste as good as they look. Love the valentine themed M&M’s too!
Thanks Paula! Everything is better with M&Ms, especially pink ones :)