White Chocolate Vanilla Marshmallow Cake Bars

PinSave

This post may contain affiliate links.

I love white chocolate.

White Chocolate Vanilla Marshmallow Cake Bars

And I have a thing for layered bars

White Chocolate Vanilla Marshmallow Cake Bars

Some people say white chocolate is too sweet.

White Chocolate Vanilla Marshmallow Cake Bars

Are you kidding me?

Nothing is too sweet for me.

Nothing.

White Chocolate Vanilla Marshmallow Cake Bars

Those same people who complain about desserts being “too sweet” will probably say these bars are “too rich” for them.

 

Nothing is too rich for me.

White Chocolate Vanilla Marshmallow Cake Bars

I just don’t think desserts can be too sweet or too rich.

 

Period.

White Chocolate Vanilla Marshmallow Cake Bars

Or too gooey.

White Chocolate Vanilla Marshmallow Cake Bars
If you disagree, then just go back for a second helping of broccoli.  I’ll take a second helping of these.

[print_this]

White Chocolate Vanilla Marshmallow Cake Bars (4 Layers)

Ingredients

Cake Layer (1st/base layer)

1/2 c butter, softened

1 box vanilla, white, or yellow cake mix (I used yellow)

1 egg

1 tsp vanilla extract

 

Marshmallow/Peanut Butter Layer (2nd layer)

2/3 c marshmallow creme

2/3 c peanut butter

1 can (14 oz) sweetened condensed milk

1 tsp vanilla extract

 

White Chocolate Layer (3rd layer)

1 bag (12 oz) white chocolate chips

 

White Chocolate Vanilla Buttercream Frosting Layer (4th/ top layer)

1/4 c butter (half stick)

1/3 c white chocolate (I used 2 baker’s squares of white chocolate, or use white chocolate chips)

2 c powdered sugar (variable from 1.5 to 3 cups based on desired consistency)

2 tbsp cream (or milk.  I used Coffeemate Vanilla coffee creamer)

1.5 tsp vanilla extract

 

Directions:

1. Preheat oven to 350F and line a 9×13 pan with foil and spray well with cooking spray.

2. For the cake (1st/base) layer: Place stick of butter into a large bowl and microwave until the butter is softened (or just plan ahead and soften it at room temperature over time).  Add cake mix, egg, and vanilla extract to the softened butter and mix with a spoon or your hands until well combined.  It will be the consistency of very thick cookie dough and if it’s just not quite all combining, add 1 or 2 tbsp of water as needed.  Press dough into prepared baking pan.

3. For the marshmallow/peanut butter (2nd) layer: Place marshmallow creme, peanut butter, condensed milk, and vanilla extract into a large bowl and mix until well combined.  Pour over the dough.

4. For the white chocolate (3rd) layer: Sprinkle the white chocolate chips evenly over the top of the marshmallow/PB layer

5. Bake for 20-23 minutes at 350F.  Center may seem somewhat jiggly, but will set up while cools.  Don’t overbake.  You want these gooey.

6. While bars are baking, make the white chocolate vanilla buttercream frosting (4th/top) layer: Add butter and white chocolate to a microwave-safe bowl and melt in the microwave in 30-45 second increments, removing from the heat, and stirring and re-microwaving until melted and smooth.  Don’t scorch the white chocolate.  Add powdered sugar, cream, and vanilla extract and stir until smooth and is in a semi-pourable consistency.   For thicker frosting, use less cream or more powdered sugar.  Play around with ratios to your liking.

7. After the bars are out of the oven, allow to cool for about 5-10 minutes and then drizzle the frosting over the top.   You can also frost them in entirety rather than drizzling (you will likely have enough frosting to do so).

8. Allow to cool well before slicing and serving.  Expedite this by placing in the fridge or freezer.

Notes: To make this gluten free, use GF cake mix.

To make this vegan, in place of the egg, use a chia or flax egg like I instructed how to do in this recipe.  Use margarine in place of butter.  Use full fat coconut milk sweetened with agave for the sweetened condensed milk.  Use vegan white chocolate and vegan marshmallows<– Lots of tweaks, yes, but not impossible.

[/print_this]

 

A Visual Guide:

Gather your ingredients for the cake/base layer

Ingredients for White Chocolate Vanilla Marshmallow Cake Bars

Make the dough

Dough of White Chocolate Vanilla Marshmallow Cake Bars

Press dough into pan

Dough of White Chocolate Vanilla Marshmallow Cake Bars

Gather the ingredients for the marshmallow/peanut butter layer

Ingredients on countertop

Make mixture and spread over the top of the cake layer

cake layer

Add the white chocolate chips

white chocolate chipsDoesn’t that look good!

Chip nirvana. That’s what I imagine the pearly gates of heaven looking like.

Place pan in oven to bake and while your pan ‘o heaven is baking make the white chocolate vanilla buttercream frosting.

Don’t just straight up drink this.  But I wanted to.

After bakingWhite Chocolate Vanilla Marshmallow Cake Bars

 

Afternd cooling 5-10 minutes, drizzle the white chocolate vanilla buttercream frosting over the top  and (or frost bars in entirety rather than drizzling since the frosting recipe will make a bit extra)

White Chocolate Vanilla Marshmallow Cake BarsWhite chocolate ribbons and swirls. 

Just taking these pictures was euphoric for me.

White Chocolate Vanilla Marshmallow Cake Bars

Cool, slice, and serve

White Chocolate Vanilla Marshmallow Cake Bars

These are crazy good.

The cakey layer, then the gooey peanut butter vanilla sweetened condensed milk and marshmallow layer that just melts in your mouth

And the crunch of the white chocolate chips

All topped with white chocolate vanilla buttercream frosting. 

Oh these are totally fat free and calorie free, did I mention?

They are probably the best bars I’ve made in recent memory. 

Or ever.

White Chocolate Vanilla Marshmallow Cake Bars

There’s a wonderful cakey-ness to them because of the cake layer at the bottom.  A bit white chocolate blondie-like.

White Chocolate Vanilla Marshmallow Cake Bars

But because of everything else going on in the middle layer: the marshmallow creme, the peanut butter, all that vanilla…

White Chocolate Vanilla Marshmallow Cake Bars…even after they’re baked, they’re still semi-drippy in the middle layer.

Sort of oozing.

That would be a marshmallow-cremey-peanut-buttery-vanillaey oozey, luscious, drippy mess.

With white chocolate chips everywhere.

And white chocolate buttercream frosting on top

Overhead of two bars on white plate

It sort of crackles as it cools.  Mmmm, good.

Overhead of one bar on plate

It’s one good thing after the next as you sink your teeth into one of these sugar bombs.

Two stacked White Chocolate Vanilla Marshmallow Cake Bars on plate
And yes, they are sweet.  And rich. 

But I already covered that.

Overhead of two stacked White Chocolate Vanilla Marshmallow Cake Bars on plateIf you don’t like sweet desserts, or rich desserts, then skip these. 

Go eat beans or celery sticks or cardboard or something less sweet and less rich.

But if you’d like to be transported to heaven (or at the very least transported to the dentist from the cavities you may get from these) then go ahead and make these.

Four White Chocolate Vanilla Marshmallow Cake Bars on white plate stacked

You will thank me later for the peer pressure.

Close up of bars stacked on plate showing layers

Close up of two stacked bars on plate

Questions:

1. What’s your favorite dessert bar

Not talking cookies or pies or cakes. 

I’m talking bars, blondies, or brownies

In recent memory the highest praises goes to

Fudgy Nutella Brownies with Cream Cheese Frosting

Magic Eight Bars

Nutter Butter Special K Bars (No Bake)

Special K Bars (No Bake)

Honorable Mention: Chocolate Chip Cookie Dough & Marshmallow Stuffed Rice Krispie Bars

I happen to love bars.  Maybe it’s my Minnesota upbringing where bringing a pan of bars was standard protocol for everything from graduation parties to funeral luncheons to bridal showers.  You just brought bars.

2. Do you like White Chocolate?

I love it!

I am adding this recipe to my White Chocolate Recipes Collection post

Need other white chocolate ideas?

No Bake White Chocolate & Mango Cookie Dough Bites

PB Cups with Half White Chocolate/Half Dark Chocolate Outside with Chocolate PB Center

White Chocolate Blondies with Chocolate Peanut Butter Frosting

All around I have nothing but love for white chocolate.

3. What’s the best thing you ate or did over the weekend?

I had a big and busy week!

These bars ranked right up there a best thing as did the other dessert I made and mentioned in my last post, Ooh La La

If you’re just catching up on posts from the weekend, here are mine since Friday:

Have a great start to your week!

 

About the Author

Welcome to AverieCooks! Here you’ll find fast and easy recipes that taste amazing and are geared for real life. Nothing fussy or complicated, just awesome tasting dishes everyone loves!

Get the latest recipes via email!

Leave a Comment

Please note: I have only made the recipe as written, and cannot give advice or predict what will happen if you change something. If you have a question regarding changing, altering, or making substitutions to the recipe, please check out the FAQ page for more info.

Comments

  1. When I made once hot chocolate pots with condensed milk, actually they tasted freaking good too, somebody emailed me and called me a “beast” (in a friendly way) for mixing condensed milk and hot chocolate, LOL, I think you deserve that too…I love chocolates of any color and I love condensed milk, thank god I have my feet on the ground and I don´t have condensed milk in my cupboards, no way, I can´t have that at home.
    Love from Spain

  2. OMG- I love, love, love white chocolate. These bars look AMAZING!!!!!!!!!!!!!!!! :) Your pictures are AMAZING also! :) NOw I need to add all these things to my shopping list. ha!

    1. you mean you dont keep white choc chips, cake mix, sweetened condensed milk, sugar and more sugar in your cupboards? because i do!! :)

  3. I don´t know if they taste crazy good, BUT THEY LOOK CRAZY GOOD!.
    Wow, white chocolate, condensed milk…………….yujuuuuuu!
    Love from Spain
    Marialuisa

  4. i’m addicted to white chocolate too!
    i couldn’t agree more that a dessert can’t be too sweet or rich! yumm… these look absolutely diviinnneee!!

  5. I love it… It looks delicious! I’m jealous I want to make like this.. The kids will surely like it.. Thanks for sharing the ingredients..

  6. I adore the from the top photo of just the bars on a white plate and white table. It’s so simple and so beautiful! I’m loving everything about this post, and although white chocolate isn’t my favoriteeee, I don’t think you’d have to twist my arm to try one of these. And thank you for your thoughtful comment on my post about shooting out of your comfort zone. Your post about personal challenges and photography had me itching to take some risks, so thanks for that!

    1. your welcome re the comment and glad my personal challenges post inspired you. see, right there, that post and my time/energy I put into it was worth it b/c i inspired one person…you!

      the compliments on these pics..thank you

      I shot these before i went to food and light and am going to be going even more simplified on my food shoots. i went from nothing to lots of props to barer bones in this shoot to future shoots…going to pare them down even more. simple.beautiful. is my motto

  7. Ohhhh… I need bigger pants just looking at these. I’ll buy them tomorrow while 5 batches of these are cooling from the oven…

  8. OH My Gawwd. I would never have thought of white chocolate, peanut butter and marshmallow. Also, your photography is AMAZING. I love your mixing bowl and your super fine china! Very nice lady.

  9. I’ve been making all my cookies in bar form lately too. Maybe now that I live in the midwest again, my cookies will never be actual cookies again. Bars all the way. Less time, less clean up. Both big pluses in my mind.

  10. these look BEYOND delicious. I will indulge one day, when I figure out how to eat large amounts of sugar with OVEReating – and having 2 or 3 too many servings. But I live vicariously through your wonderful photography!

  11. These bars made me drool. literally.
    I love cookie bars. and blondies. and brownies.. I wish i had some on hand.

  12. This blog post was mouth-watering and I love all of the pictures! I also laughed at your “peer pressure.” At first I thought maybe it was a bit too much sweetness, but girl you have convinced me, I am looking forward to making these! Thanks for sharing!

  13. YES! I know it’s not “real” chocolate, but I don’t care – I love white chocolate! Especially in the form of Hershey’s cookies ‘n cream bars.

    These look absolutely incredible. :D

  14. 1. Best Bar (gluten free versions I’m afraid): Congo Bars! (like a blondie I guess, with nuts and chocolate chips)
    2. I’m afraid white chocolate isn’t my thing, but your pictures are mouthwatering, I’ll just pretend it’s something else :)
    3. Yoga retreat on Saturday was my weekend highlight!

  15. These look fabulous, Averie. As a girl who is not usually a huge white chocolate fan, you’ve got me re-thinking my stance. The cakey base layer is genius!

    Bravo on the beautiful photos, too :-)