Incredibly simple and delicious oatmeal cookie jam bars. These bars come together in less than 30 minutes and only require 6 ingredients!
Today, I’ve got some super simple and delicious blackberry oatmeal cookie jam bars. These bars are so simple and take just minutes to make. They are the perfect last-minute dessert to bring to a brunch or surprise your Mom. And they can all be mixed up in one bowl. I love when that happens! Minimal dirty dishes and super quick clean-up.
Basically the base is just a butter, sugar, and flour mix. A little over half of that base gets pressed into the bottom of a pan. Then jam gets spread on top.
For the jam you can use whatever flavor you would like!
If you don’t have a blackberry jam or don’t like blackberries, feel free to use whatever flavor you do like. I’ve done these bars with raspberry and strawberry and loved those flavors too. Whatever you prefer.
One thing to make sure you do is line the pan with parchment paper. When these bake the jam will seep out along the edges and if you haven’t lined your pan it makes for an interesting challenge trying to remove these. I speak from experience on this one 🙂 Not too many other directions are needed – these live up to the first word in the title – simple!

6-ingredient EASY Oatmeal Cookie Jam Bars
- 9 x 9 inch Baking Pan
- 3/4 cup + 2 tablespoons (14 tablespoons) salted butter, softened
- 1 cup brown sugar lightly packed
- 1 and 1/4 cups all-purpose flour
- 1 teaspoon baking soda
- 1 and 1/4 cup old fashioned oats, do not use steel oats or quick oats
- 1 cup blackberry jam seedless
-
Preheat the oven to 350 degrees F.
-
Line an 9 x 9-inch pan with parchment paper and set aside.
-
Using hand mixers, cream together the butter and sugar until light and creamy. Using a spoon, scoop the flour into the measuring cups. (If you press the measuring cup into the flour you will pack in too much flour)
-
Beat in the flour and baking soda.
-
Stir in the oats.
-
Press a little over half of the mixture into the bottom of the pan.
-
Spread the jam on top of the base avoiding the perimeter of the pan otherwise it will leak out and burn on the sides.
-
Sprinkle the remaining oat mixture on top of the jam.
-
Bake for 30-35 minutes or until the top is lightly golden. Remove and allow to cool at room temperature for at least 2 hours before cutting into the bars.
-
Bars best enjoyed within 2-3 days.
More Easy Dessert Recipes:
Miniature Cinnamon Roll Cheesecakes
Molten Caramel Chocolate Oatmeal Cookies
Taylor @ Food Faith Fitness says
Yay Brunch Week! These cookie jam bars look like the perfect way to kick it off girlfriend! Love them! Pinned 🙂
Medeja says
Sounds pretty easy and very delicious!
Liz says
Who needs any savory brunch recipes when there are these amazing jam bars available???? LOVE these!!!!
Cate @ Chez CateyLou says
These look delicious!! I love Bonne Maman jam – it is the best! Brunch week sounds like so much fun – I hope I win something!!
Erin @ The Spiffy Cookie says
Mmmm these jam bars look great. I love blackberries.
Dorothy @ Crazy for Crust says
These are gorgeous!! Love them, pinned!
Ashley | Spoonful of Flavor says
Simple and easy? Yes, please! Especially when they involved blackberry jam. I’m sure I could snack on these bars all day!
Holly @ Life in the Lofthouse says
These look incredible, Chelsea! And your photos are always amazing! ♥
Becca from It's Yummi! says
That jam is screaming my name! YUM!
Veronica McLaughlin Gantley says
Wow your jam bars look amazing. It is great you can swap out any jam.
Danae @ Recipe Runner says
What could be more perfect than brunch week! These bars look so good! I love how easy they are to make and Bonne Maman is one of my favorite jams to use!
Alyssa {Cake, Crust, and Sugar Dust} says
Yum! I love how easy these are to whip together. I don’t think I’ll be able to resist adding some peanut butter with that jam! Pinned!
Stephie @ Eat Your Heart Out says
I almost just licked my computer screen.
Gayle @ Pumpkin 'N Spice says
Love how delicious these bars look, Chelsea! Simple and tasty…pinned!
Alyssa @ My Sequined Life says
These bars – yum! Love the jam layer and oatmeal cookie base. Hooray for brunch week!
Chloe @ foodlikecake says
These look amazing!
Samantha @FerraroKitchen says
Now this is something I would make all the time! Happy brunch week 🙂
Alice // Hip Foodie Mom says
oh my goodness, I love these! I got fig preserves from Bonne Maman but will definitely look for their blackberry jam!! Delicious!!
Courtney @ Neighborfood says
My mom made something really similar when we were growing up and I absolutely loved it! Can’t wait to try this version!
chelseamessyapron says
Thanks Courtney!
Kelly says
I am such a sucker for anything with oatmeal and love these bars – they look delicious! Love how simple and easy they are to whip up too 🙂 Bonne Maman is my fave too and can’t wait to make these – pinning 🙂
[email protected] The Well Floured Kitchen says
These look incredible! Love that there are only a few ingredients. Pinned to try asap:)
chefette says
I just made this recipe but instead of jam I used apple butter in one batch and pumpkin butter in another…very good for fall celebrations that will be coming up shortly.
chelseamessyapron says
I LOVE the idea of using the fall butters in these bars! YUM! Thanks for the comment 🙂
Lindsay says
Made these using homemade cinnamon peach jam and they were absolutely wonderful!
chelseamessyapron says
SO great to hear!! Thank you Lindsay 🙂
Shannon says
Made them with lingonberry jam from IKEA, which is pretty tart, but there was actually a good balance between that sharpness and the other flavors. They are delicious!
chelseamessyapron says
Ooo that sounds delicious! 🙂 Thanks for the comment!
Eszter says
These are amazing. But I would not put a whole cup of jam in it. The first time I did and they did not hold their shape. Just remade them with half a cup, and they are perfect!