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No bake peanut butter cornflake cookies with marshmallows

Larson Terry
March 29, 2026
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No bake peanut butter cornflake cookies with marshmallows on a plate

No Bake Peanut Butter Cornflake Cookies with Marshmallows: The Sweetest Kitchen Mishap

The first time I whipped these up, I was convinced I’d invented some culinary masterpiece worthy of a televised cooking show. Spoiler alert: I didn’t. The kitchen looked like a scene from a food fight instead of an episode of “The Great British Bake Off.” There I was, wielding a wooden spoon with the finesse of a toddler painting with finger paints, and let me tell you, it was a glorious disaster. Cornflakes flew into the air, peanut butter stuck to the counter like it was trying to escape, and a rogue marshmallow landed squarely in the dog’s water bowl.

My then six-year-old son, Ben, walked in, raised an eyebrow, and quipped, “You sure this is a recipe and not a crime scene?” I can almost hear the giggles of my relatives echoing through my memory as I mix these again—because these cookies turned out to be our family’s little guilty pleasure. Now, whenever we have a rough day or just need a sweet pick-me-up, this no-bake peanut butter cornflake cookie recipe gets us right back on track. I’m telling you, they’re a quick fix when everything feels like it’s gone haywire.

Why This Matters

Life can be a whirlwind of chaos—between kids screaming, dishes piling up, and that endless laundry that never seems to go away, sometimes we just need something easy and sweet to make it all better. These cookies are way more than just a treat; they’re a hug in dessert form. Trust me, when you pull them out of the fridge and take that first bite, you’ll feel like all your worries have melted away. This isn’t just about sugar and cornflakes; it’s about those little moments of joy we can create in our hectic days. They say you can’t buy happiness, but if you can make these cookies at home, I think you can come pretty close.

Before You Start

  • Check your pantry: If you’ve only got crunchy peanut butter instead of smooth, go for it! Crunchy adds a fun texture (no one will judge you).
  • Sticky fingers alert: If you’re cooking with kids, prepare for a sticky situation. Have some extra paper towels handy, and maybe even a bowl of warm soapy water to rinse those little hands.
  • The marshmallow trick: If you can only find mini marshmallows, don’t worry. They’ll do just fine in this recipe; they’ll still melt in your mouth.
  • Multi-tasking mamas: Put on your favourite podcast or grab a glass of wine while mixing these up—I mean, why not?

Ingredients List with Personal Notes

  • 1 cup peanut butter (I always use the creamy kind because, let’s be honest, smooth is just easier)
  • ¼ cup honey (Local honey has a lovely flavour, but any kind works—don’t be fancy if you don’t have to be)
  • 4 cups cornflakes (I go for the generic brand because they taste just as good, and I can buy three boxes for the price of one)
  • 2 cups mini marshmallows (You know, those little puffs of happiness)
  • 1 cup chocolate chips (Normally, I use milk chocolate because it’s like candy for adults—who can resist?)
  • ¼ cup butter (You know, the real stuff; margarine is just not the same)

No bake peanut butter cornflake cookies with marshmallows

The Step-by-Step with Stories

Step 1: Mix Your Wet Ingredients

The Practical Instruction: Start by scooping your peanut butter and honey into a mixing bowl.

The Human Insight: Why this step matters: This forms the foundation of your cookie mix. If it’s too warm, it’ll just drip everywhere, and if it’s too cold, you’ll end up wrestling with the peanut butter like it’s a small child refusing to leave the playground.

The Anecdote: The first time I made these, I mistakenly used cold peanut butter, and my arm became quite the workout. Ben, who was three back then, kept handing me spoons, thinking he was helping, and I ended up with peanut butter everywhere… including my hair.

Step 2: Add the Cornflakes

The Practical Instruction: Gently fold in your cornflakes until they’re nicely coated.

The Human Insight: Common mistake here: If you stir too hard, you’re going to turn those cornflakes into tiny bits. You want that satisfying crunch, remember?

The Anecdote: This is where I let Ben take over. He loves pretending he’s a chef on TV, and I’ll tell you, it’s a sight to see a little one with serious cooking skills (well, kind of). He insists on wearing an apron that’s way too big, which adds to the charm.

Step 3: Add Marshmallows and Chocolate Chips

The Practical Instruction: Now, you’ll want to fold in those marshmallows and chocolate chips gently.

The Human Insight: My personal hack: If you’ve had a long day, just toss the chocolate chips in for a hefty boost. You’ll thank me later.

The Anecdote: Here’s the thing: Whenever I make these, I have to guard the chocolate chips. My husband, Dave, always tries to sneak a handful when he thinks no one is watching. Trust me, it ends up being a competition.

Step 4: Form Your Cookies

The Practical Instruction: Grab a cookie scoop or just use your hands to form small balls and place them on parchment paper.

The Human Insight: The sensory cue: You’ll know it’s ready when you can form a ball without everything falling apart. If your hands are sticky beyond belief, you might need a touch more peanut butter or honey.

The Anecdote: I remember one time I tried to get fancy and added crushed nuts. It didn’t work out, and I ended up with a combination that was less than appealing—a lesson learned!

Step 5: Chill in the Fridge

The Practical Instruction: Pop those cookies in the fridge for about 30 minutes until they’re set.

The Human Insight: If you need to pause because, say, a kid has misplaced something crucial (like their favourite toy), no worries. Just cover the bowl and pop it in the fridge.

The Anecdote: My son once told me they need to "rest" like he does after school, which made me laugh. Never thought I’d hear that at cookie time!

Troubleshooting Real Life

  • If you burn the bottom: This recipe is forgiving, so if you’ve used too much honey and they started to stick, try putting them in the fridge for a while. You’d be surprised how that can help.
  • If you’re missing an ingredient: Swap the chocolate chips for dried fruit. It’s not the same but hey, it can work!
  • If you need to pause because of a work call: Just cover the mixture and come back—trust me, they won’t be harmed.
  • If it’s just not working: Call it a ‘deconstructed’ cookie dough and serve it in bowls with spoons. Call it gourmet!

The Serving Story

I serve these bad boys in a large glass bowl because it looks oh-so-chic on my table. It’s kind of funny, actually—who would think cornflakes could end up in a fancy bowl? The perfect side? Honestly, sometimes, we just munch on them straight from the fridge! Nothing like chocolate and peanut butter on a warm summer evening. Plus, they hold up pretty well in the fridge, so don’t worry about making too much; leftovers are even better the next day.

When I Make This Story

I usually whip these up on Sunday evenings while I’m trying to prep for the week ahead. It’s a bit of a ritual now. I’ve got my spouse and kids in tow. While these cookies are chilling—a.k.a. my mini break—I get to fold laundry or catch up on guilty pleasure reality TV. When we finally dig in, we’re usually all sprawled out on the couch, munching away while debating the latest superhero flick we watched. Cleanup takes about 15 minutes, mostly because I’m just gathering plates and pretending I’ll wash the mixing bowl later. I try, I really do, but sometimes it just sits in the sink while I enjoy my cookies on the sofa.

The Conversational Close

These cookies have been a part of my life for years—they’ve seen me through good days, busy days, and the occasional meltdown over a broken toy. Okay, maybe more than a few. They might not bring world peace or end hunger, but they deliver happiness on a small scale, and in my book, that counts for a lot.

So, if you decide to give these no-bake peanut butter cornflake cookies a shot, tag me or share your version. Can we talk about those lovely, sweet moments that turn a regular day into a special one? What’s your all-time favourite comfort dessert? Mine changes with the weather, but right now, this dessert takes the cake—or cookie, as it were.


Okay, let’s be real, I can’t wait to hear about your adventures in the kitchen, whether they’re messy or perfectly planned. Share your thoughts with me; let’s swap stories and sprinkle some sweetness into our lives!

No bake peanut butter cornflake cookies with marshmallows

No Bake Peanut Butter Cornflake Cookies

These no-bake peanut butter cornflake cookies with marshmallows are a quick and delightful treat that brings comfort and joy to hectic days.
Prep Time 15 minutes
Total Time 30 minutes
Servings: 12 cookies
Course: Dessert, Snack
Cuisine: American
Calories: 150

Ingredients
  

Wet Ingredients
  • 1 cup peanut butter Creamy is preferred for ease.
  • ¼ cup honey Local honey has great flavor.
  • ¼ cup butter Use real butter, not margarine.
Main Ingredients
  • 4 cups cornflakes Generic brand works well.
  • 2 cups mini marshmallows They melt in your mouth!
  • 1 cup chocolate chips Milk chocolate is recommended.

Method
 

Mix Your Wet Ingredients
  1. Scoop peanut butter and honey into a mixing bowl and mix well.
Add the Cornflakes
  1. Gently fold in the cornflakes until they are nicely coated.
Add Marshmallows and Chocolate Chips
  1. Fold in the marshmallows and chocolate chips gently.
Form Your Cookies
  1. Use a cookie scoop or your hands to form small balls and place them on parchment paper.
Chill in the Fridge
  1. Place the cookies in the fridge for about 30 minutes until they are set.

Nutrition

Serving: 1gCalories: 150kcalCarbohydrates: 22gProtein: 3gFat: 6gSaturated Fat: 2gSodium: 50mgFiber: 1gSugar: 8g

Notes

These cookies can be served in a fancy bowl or enjoyed straight from the fridge. They hold up well and taste even better the next day. Be mindful of sticky fingers if cooking with kids!
Tried this recipe?Let us know how it was!
Written By

Larson Terry

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