Strawberry Marshmallow Crumb Bars - Version 2 - Num's the Word
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Strawberry Marshmallow Crumb Bars – Version 2


These Strawberry Crumb Bars are light, airy and oh so tasty! This no bake dessert has been passed down from my grandmother continues to be a family favorite!

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Strawberry Crumb Bars vs. 2 - Main image for recipe of crumb bars on platter ready to be served

Strawberry Crumb Bars vs. 2 - odd sized single image for Pinteret
Strawberry Crumb Bars vs. 2 - Collage of images for Pinterest long pin
Strawberry Crumb Bars vs. 2 - Collage of images for Facebook


These Strawberry Crumb Bars are one of those vivid memories I have of visiting my Grandmother.

I remember she made these once and my younger brother fell head over heels in love with them.

After that day, she made sure to have them available every time we visited.

Over time, my little brother claimed that he no longer liked them and she then stopped making them.



Strawberry Crumb Bars vs. 2 - crust in the bottom of a 9x9 casserole dish



Fast forward 25+ years later and I stumbled upon this recipe in an old family cookbook with my grandmothers name attached.

It was then a flood of memories came back and I decided to make these so I could remember how they tasted.

The issue was that my grandmother was not the best at writing down recipes.

And so, as with most of her recipes I’m learning, there were a few details missing.



Strawberry Crumb Bars vs. 2 - marshmallows and milk in a pot



Do I slice the strawberries or puree them?

Do I layer the bars or mix them all together?

And lastly, what does “large” mean?

My grandmother though liked to use the words pinch, small, large and scant.



Strawberry Crumb Bars vs. 2 - whipped cream whipped to stiff peaks



Small and large I’m sure were completely different sizes than they are today and so there is a lot of guessing that goes into one of her recipes.

Sadly she is no longer with us so I cannot just call her up to ask what she means.

Nor would I get a straight answer if she were alive.

Because large is large and small is small.



Strawberry Crumb Bars vs. 2 - strawberry puree added to whipped cream



This is why I have two versions of these Strawberry Crumb Bars.

Both are plausible with the sparse directions given for the recipe.

These were both logical guesses as to how they could be made.

And since it’s been so long since I’ve eaten these, I couldn’t remember what they looked like other than the crumbs on top.



Strawberry Crumb Bars vs. 2 - melted marshmallows added to whipped cream and strawberry mixture



I believe though that this version is most likely the right version.

However my husband and friends LOVED version one as much as version two that I had to put both on the website.

So far everyone who has tried these has fallen in love with them.

The main comment I get is that these are VERY dangerous to have around.

Not only do they have a strong strawberry flavor, but they are incredibly light and airy.



Strawberry Crumb Bars vs. 2 - strawberry marshmallow mixture poured on top of crust



So light that you can easily eat two or three without thinking twice.

Since rediscovering this recipe, it is now a required summer treat whenever we got strawberry picking.

We love to use fresh picked strawberries, although store bought work well too.



Strawberry Crumb Bars vs. 2 - top sprinkled with crust crumbs.



I love how easy these bars are and the memories they bring back from my childhood.

These Strawberry Crumb Bars are now a favorite treat in my home and one that we love to share with others!

If you love strawberries I hope you’ll give these yummy Strawberry Crumb Bars a try!



Strawberry Crumb Bars vs. 2 - fork full of bar sitting next to crumb bar to show texture.




Yield: 9 servings or 16 small servings

Strawberry Marshmallow Crumb Bars – Version 2

Prep Time 20 minutes
Cook Time 20 minutes
Inactive Time 2 hours
Total Time 2 hours 40 minutes


  • 1 1/2 cups of graham crackers, crushed
  • 6 Tablespoons butter
  • 1 cup of heavy whipping cream
  • 1 teaspoon vanilla
  • 1 (12 ounce) bag of large marshmallows
  • 1/4 cup of milk - any (we used 2%)
  • 1 (16 ounce) package of strawberries, pureed.


Line a 9x9 casserole dish with non stick foil or parchment paper. Trust me, it makes removing from pan and slicing easier.
In a small bowl, combine graham crackers and butter. Mixture does not need to be super buttery, crumbly is fine.
Press mixture into bottom of casserole dish. Reserve 1/2 cup to sprinkle on top. Set aside.
Whip up whipping cream with vanilla until stiff peaks, set aside. DO NOT ADD EXTRA SUGAR.
In a large non-stick sauce pan, add marshmallows and milk and melt down until smooth stirring regularly.
Once marshmallows are melted and smooth, remove from heat let cool for 5 - 10 minutes, stirring regularly.
Once cooled fold in pureed strawberries. Mix well.
Add whipped cream to strawberry marshmallow mixture.
Pour marshmallow mixture into graham cracker crust.
Top with reserved graham cracker mixture.
Refrigerate for 2 hours or until set.
Slice and serve.


Originally Posted: May 15, 2014

Photos & Text Updated: August 4, 2018

12 thoughts on “Strawberry Marshmallow Crumb Bars – Version 2

    • My daughter is obsessed with marshmallows! Just be careful. My husband always tells people when eating these to “pace yourself”. Because they are so light weight and fluffy you can easily down several before realizing how much you’ve eaten!

  1. I just made this dessert and it has been in the fridge for four hours. It hasn’t set. I wonder about the measurement of marshmallows…

    “1 (10 ounce) bag of large marshmallows – not the GIANT ones.”

    1 bag of marshmallows (10 oz). ??
    I had someone pick up the ingredients and they purchased a 1 kg bag of marshmallows. So, I had to measured out 10 oz, which is 1 and 1/4 cup. I just looked up marshmallows packages and a small bag of marshmallows is 16 oz. I suspect the measurement on this recipe is incorrect and if followed by the oz. measurement it likely will not thicken.

    • Hi Leah! A 10 ounce bag of marshmallows is a standard size here in the US. I’m guessing that since you bought a 1kg bag, you aren’t from the US. Unfortunately, your conversion is for liquid, not solid. 10 liquid ounces is 1 1/4 cups, however 10 ounces of marshmallows, which weigh less than liquid is actually 2 cups of marshmallows or 20 large (not giant) marshallows. I’d even toss one or two extras in there just for good measure. Due to there not being enough marshmallows in your bars, they will not thicken but remain as soup. 🙁 I’m so sorry this didn’t turn out for you, however I hope you’ll try again! They are one of my favorites!

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