These Toasted Marshmallow Peanut Butter Cake Bars are chewy, sweet and packed with all kinds of peanut butter cookie goodness! They’re some of our favorite cookie bars ever!
Marshmallow & Peanut Butter Cake Cookie Bars
Girl Scout Season is here! Yay for my taste buds but boo for my waistline because that means I am adding Girl Scout Cookies to everything including my new Toasted Marshmallow Peanut Butter Cake Bars. Let me paint the picture for you. Imagine sinking your teeth into an ultra chewy cake-y cookie like consistency-half way between a rice krispie treat and blondie. The toasted marshmallows mixed right into the dough give the best texture and not to mention rich taste.
Try my Thin Mint Double Chocolate Chip Cookies too! Follow Picky Palate on Instagram for daily recipe inspiration.
Here’s your ingredients. Nice and simple.
How to Roast Marshmallows in The Oven
- Preheat oven to 400 degrees F. then back to 350 for bars and line 2 large baking sheets with a silpat liner or parchment paper. I used the half sheet size.
- Place marshmallows into the center of your baking sheet and bake for about 10 minutes until nice and golden on the tops and puffed. Remove and reduce oven’s temperature to 350.
How To Make Peanut Butter Cake Bars
- Preheat oven to 350 degrees F. Place cake mix, butter, oil, egg, chocolate chips and quartered Tagalongs into a large mixing bowl. Stir to combine. Stir in toasted marshmallows, only stir to combine gently, you don’t want to mix too much. Transfer dough to prepared baking sheet and press evenly, don’t spread to edges, just within the border is fine.
- Bake for 18-22 minutes, until baked through. Remove and let cook for 30 minutes before slicing into squares. Serve and Enjoy!
Add your egg, a little oil and of course the peanut butter!
Time to add the toasted marshmallows. Be prepared, it’s a sticky delicious mess. Just scoop it up the best you can with a spoon.
Add it right to your bowl.
Give a gentle stir.
Girl Scout Cookies! I used the peanut butter patties aka Tagalongs.
Quarter those babies and add them right to the bowl.
Oh yah!
Transfer to your prepared baking sheet and press evenly.
Bake and get ready to nom nom nom 🙂
Perfect little chewy squares.
Careful these babies go fast.
Toasted Marshmallow Peanut Butter Cake Bars
Equipment
- Oven
Ingredients
- 6 Jumbo marshmallows
- 1 box yellow cake mix
- 1 stick/1/2 cup unsalted softened butter
- 2 tablespoons vegetable or canola oil
- 1 large egg
- 1/2 cup creamy peanut butter
- 1 1/2 cups chocolate chips I used mini
- 10 Girl Scout Tagalongs quartered (peanut butter patties)
Instructions
- Preheat oven to 400 degrees then back to 350 for bars and line 2 large baking sheets with a silpat liner or parchment paper. I used the half sheet size.
- Place marshmallows into the center of your baking sheet and bake for about 10 minutes until nice and golden on the tops and puffed. Remove and reduce oven’s temperature to 350.
- Place cake mix, butter, oil, egg, chocolate chips and quartered Tagalongs into a large mixing bowl. Stir to combine. Stir in toasted marshmallows, only stir to combine gently, you don’t want to mix too much. Transfer dough to prepared baking sheet and press evenly, don’t spread to edges, just within the border is fine. Bake for 18-22 minutes, until baked through. Remove and let cook for 30 minutes before slicing into squares. Serve and Enjoy!
I really want to try baking with toasted marshmallow this looks amazing. Loving the new blog design 🙂 So fun to see all the changes over the years!
I should totally make this I looks insane 🙂
think i have put on weight just by watching !
but worth it badly yumyum !
I’m so glad I bought that extra box of Tagalongs because I am dying to make these! They look so addicting!
Since I’ve already consumed the Tagalongs I bought this season, I found a perfect substitute…Walmart’s Great Value brand has a peanut butter patty cookie that is just the same as the GS tagalong….but $1.50 a package 🙂 There’s a Thin Mint version as well….perfect for after GS cookie time is over, so we can make these yummy bars all year!
Oh my goodness!!! I NEED these!!
Holy cow!!! I want this ASAP!
I feel like I’m the last person on the planet to have a girl scout cookie this season. These sound amazing!
All that I like* sorry
Hi ! 😀 It’s look delicious ! i’m french so i’ve never eat peanet butter but i want to now 😉 It’s all I like : Marshmallows, chocolate *_*
Kisses ! :p
Oh my gosh! That’s ooey gooey deliciousness! Love girl Scout Cookies 🙂
These look absolutely delicious 🙂
I loooove Girl Scout cookie time – but you’re right, my waistline is not going to love me! I have a wedding coming up and this is going to be bad news because I’m pretty sure I can eat that entire batch!!
I need me some girl scout cookies!! 🙂 These look delicious!
Those look yummy. Do you know what cookie would be a good substitute if you don’t have the Tagalongs?
holy moly jenny! i need these in my life immediately! toasted marshmallow? heck yes!
Oh are these fun Jenny and perfect for weekend baking projects 🙂
Oh man! I am LOVING all these toasted marshmallow recipes you are doing. Going to have to make some of them soon!
I could go for a couple of these right now! Love the toasted marshmallow!
Like really … I never thought tagalongs could get better than they already were but daaaannnngg… you did it again!!! #Mymindisblown
Oh Jenny! I haven’t bought GS cookies in a few years….now I’m going to have to hunt them down! These bars look amazing!
These look so good! I actually just made a peanut butter cookie with tagalongs to get rid of some of my stash of Girl Scout cookies. Looks like I need to buy more tagalongs!
Whoa. You just took my favorite Girl Scout Cookie to a whole new level. Amazing!!!
could I make this without the cookies? maybe replace it with something else? sounds divine!
I’d probably finish all the toasted marshmallows before they would reach the dough bowl 🙂
They look like super soft cookie bars! Oh yum!! I love the idea of cake bars!
Those toasted marshmallows are killin me!!! Love!
WOW. These look divine.
Yum! I need to find some GS cookies!
Holy Yum, I would not be able to stop eating these until the last square was gone….
I’d be happy with just toasted marshmallows, but you really put this treat over the top! xox
Looks delicious !
What a recipe! And that picture of the mound of dough…oh my, can I just eat that? 😉
I knew you’d do it — combined my favorite girl scout cookies with cookie bars! Oh my goodness, I can’t wait to try these! They look great.
Would have never guessed you baked them ‘free form’ just on a Silpat without really pressing them into a pan per se. They look amazing. PB, marshmallows, cake mix, Tagalongs…love them all!
These cake bars are amazing! I can’t believe how delicious this is.