
Good morning guys! I can’t think of a better way to start the day than with these blissful little oatmeal cream pies. The classic treat you may have found in you lunch box as a kid has been completely revamped. Chewy oatmeal cookies are bursting with local blueberries and filled with a vanilla bean mascarpone filling. Seriously, I really wish I could just hand you one through the computer…
I don’t know about you, but I am completely smitten with berries right now. The color alone is enough to make me swoon, and they add such a brightness to baked goods. I added some blueberries to my go to oatmeal cookie recipe, and they turned out awesome! The berries pop while they’re baking giving off this beautiful color. The cookies alone are a treat, and being that they’re full of oats and fresh berries, maybe they pass as breakfast?!

The next step in this makeover was to make the cream filling. The fact that I had to pry myself away from the cookies to make it was torture, but believe me, it’s worth it! There was no doubt in my mind that I wanted to use mascarpone, so I mixed it with a little light brown sugar and vanilla bean paste. It’ creamy with just a hint of earthy sweetness, and the little specks of vanilla bean make me happy. I sandwiched the cookies with it, and this is the point where I don’t even have words.
All I can tell you is you need to make these, I promise you will thank me. They are super easy to make, so they’re great for any skill level, and who doesn’t love an oatmeal cream pie!

Ingredients
- 4 ounces unsalted butter, room temp
- 1/2 cup light brown sugar
- 1/4 cup sugar
- 1 egg
- 1 teaspoon vanilla bean paste (You can also use vanilla extract)
- 3/4 cup AP flour
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1 & 1/2 cups oats
- 1/2 cup blueberries
- 8 ounces mascarpone cheese
- 1/2 teaspoon vanilla bean paste
- 2 Tablespoons light brown sugar
Instructions
- Cream butter and sugars till light and fluffy.
- Add egg and vanilla.
- Mix in flour, salt, and baking soda.
- Mix in oats.
- Gently mix in blueberries. Be careful not to break them up!
- Wrap cookie dough in plastic wrap & refrigerate a few hours – over night.
- Scoop cookies, I use a scoop that measures 1/2 ounce portions, and bake at 325 degrees for 13-15 minutes rotating once halfway through.
- Let mascarpone sit out for a few minutes so if softens(just enough so you can stir it)
- Stir in vanilla bean paste and light brown sugar.
- Fill cookies with mascarpone filling and refrigerate.
Notes
I used a piping bag to fill them. If you don't have one, you can use a ziploc bag with the corner snipped off. You can also just use a spoon.
I use a 1/2 ounce cookie scoop.









I’m Meghan, a pastry chef, recipe developer and culinary personality, who loves to flirt with dessert. On Buttercream Blondie, I give your favorite sweets makeovers. Join me as I glam them up one recipe at a time!

These are beautiful. And the fact that you added blueberries is insane! YUM!
Thanks Jen! I can’t get enough of blueberries right now!
These are gorgeous! I love how you added blueberries! It sounds delicious!
Thank you Jessica
Oh my goodness, these look amazing. My mouth is watering! Do you deliver??
Thank you!
These cookies look sinfully delicious! A must try!
Thanks Ellen! Hope you enjoy them!
Wonderful! My son LOVES oatmeal cream pies and he’ll be thrilled I’ve found a recipe for them. I love the blueberries in the cookies. Brilliant! Thank you for sharing.
Thanks so much Stephanie! I hope you & your son enjoy them
Oh wow, my mouth is watering!!!!
Thanks! I’m very sad they’re all gone!
These cookies look amazing! I have a recipe for oatmeal blueberry cookies that is probably my favorite oatmeal cookie. Love the looks of these cream pies!
Thanks Cassie!
The filling is just perfect!! The whole idea is super!!
Thank you! How are you feeling??
i love the use of mascarpone in the filling! these look perfect!
Thanks so much Heather!
Aww these totally bring me back to my childhood, love these little oatmeal cream pies!
Thanks Kel!
These are gorgeous, and they sound perfect! And really, if there is fruit, I can eat it for breakfast
Thanks Erin! I like the way you think
Heavenly looking! And you get your fiber and such.
Thanks Jenn!
Okay, you just made me so hungry. The worst part is,now what? Obviously I can’t get my hands on them & nothing else will do! They look absolutely amazing!!
Thank you! I’ll bring some home soon!
Ahhh! This looks amazing! Love the idea of adding blueberries to the oatmeal cookie!
Thanks so much Steph!
These look so great, I am going to make them this weekend! Question for you: I might just make them as regular cookies and not sandwich cookies. If I don’t make the cream and just make (and eat) them plain, do you think the cookies are sweet enough, or should I up the sugar a little? I know with sandwich cookies I’ve made in the past, the cookie itself isn’t that sweet because the you have to offset the sweet filling. Thoughts?
Thanks Mary Ellen! I think they are sweet enough on their own. Let me know how they turn out!
Oh my, yum yum yum! Love these.
Thanks Kim!
[...] White Bean Cookie Cake, or beautiful photos like for today’s recipe which I found on the Butter Cream Blondie blog. It makes me wonder how I will photograph the dish and whether it will be appropriate for the [...]
oh wow, these look absolutely amazing! love the addition of the blueberries, too – what a great idea!
Thanks Amy! The blueberries make them
Seriously Meghan, these are the best oatmeal cream pies I have ever seen! I love this creation with the blueberries and mascarpone cream! So much better than any I have ever tried. Hope you had a wonderful weekend
!
You’re so sweet Amy! Thanks so much!
[...] Adapted from the fabulous Buttercream Blondie [...]
Oh man these are to die for! I totally need a dozen of these for breakfast!
Thanks girl!
such a nice way to incorporate berries into breakfast! i could probably eat 5 or 6 of these in one go…lol
You & me both
These look amazing!
Thanks Marla!
These look and sounds awesome! Way better than anything out of a package.
My son was just telling me he was craving cream filled oatmeal cookies. These are beyond anything I would have come up with. I love these.
Thank you! I hope you guys enjoy them!
I love oatmeal cream pies, so I’m sooo giving these a try. I might even try raspberries instead of blueberries.
-Allison
http://butterisbeautiful.wordpress.com
These look and sound delicious! Love the blueberries, what a great twist!!
Thanks Faye!
Wowza.. that top photo nearly took my breath away. I love anything with blueberries but an oatmeal cream pie with them.. bliss.. oh right, you said that already.
Thanks so much Maureen!
Made these with the intention of sending them to my roommate who just started her first job (without the filling of course and I haven’t decided if I’m putting them in the mail yet! They are so amazing!
So happy to hear that Abby! Glad you are enjoying them
I wish you could hand me one of these blissful beauties through the computer too. They look so good. And that cream- yum!
Thanks Jennie!
i’ve made blueberry bliss bars and carrot oatmeal bliss cookies. Now I have to make your blueberry bliss oatmeal cookies. they would make a delicious breakfast with a glass of milk
Blueberry Bliss Bars sounds soooo good Roxana! I’m going to have to try them!
This would be a dangerous dessert for me to make….that is all LOL!!! Gorgeous:-) Hugs, Terra
Thanks Terra! They are dangerous for me to have in the house too!
What kind of oats do you use?
I use quaker oats quick oats.
Oh wow these look delicious! I’m not usually too keen on mascarpone, but I will give it another go for these beauties as I imagine it really compliments the blueberries
[...] blueberry oatmeal cream pies || recipe [...]
Yum, Meghan! Summertime means berries and these here are a wondrous application of blueberries! I’ll bet they taste just as good as they look!
I think I just drooled on my keyboard. These look amazing! Can’t wait to try them.
there’s a hundred things I love about this post – great oatmeal cookies, blueberries IN the cookies, the filling, the sandwich principle (my love of little debbie OCPies) – these are awesome!
[...] time for some fall recipes! Pumpkin & spice and other delicious goodness! I recently made some oatmeal cookies with fresh blueberries in them, which got me thinking about putting other fresh fruits in cookies. Why do the rules say [...]
Ok, I never post on blog’s, but this recipe was OUT OF THIS WORLD amazing and I just HAD to say something!! This is by far my most favorite desert now. My husband and I had some really delicious oatmeal cream pies at a restaurant a couple weeks ago and I was hoping to find a recipe that was even half as good, well these were WAY better!! Thanks so much for a perfect recipe:)
Thanks so much for the lovely compliment, Julie! I’m so happy you guys enjoyed them!
Ooooh, I’m in love with these. Anything with fresh blueberries in them is awesome. I bet the flavor combo is amazing, as well as all the textures.