Name: Oatmeal Berry Crumb Bars
Prep time: 10 min
Cook time: 25 min
Total time: 35 min
Yield: 24
Cuisine: American
Ingredients: 1 1/2 cups all purpose flour; 1 1/2 cups quick oats (see note); 1 cup granulated sugar; 1/2 teaspoon baking soda; 3/4 cup COLD butter; 3 cups assorted fresh (or frozen, unsweetened) berries (I used sliced strawberries, whole blueberries, and whole blackberries); 2 1/2 tablespoons granulated sugar; 1 tablespoon lemon juice; 2 tablespoons water; 1 tablespoon cornstarch

Jump to Recipe

Time is flying in a really unbelievable way.

I know that because a) I have 242 unread emails in ONE inbox and 110 in another and every day I skim through for anything urgent and declare that tomorrow will be the day I get it whittled down to nothing (#fail), and b) because it is already time for me to share another Leftovers Club post.

I swear I made this M & M Cookie Skillet Sundae like… last week or something.

If you are wondering whyyyy you should care about Leftovers Club if I am not putting dessert for YOU in the mail. And I’ll tell you:

It’s because shippable goodies are a good little trick to have up your sleeve.

I firmly believe in mailing treats. Once I even mailed cupcakes. It worked.

This month I was partnered up with Marie from Little Kitchie and ohmygoshIlovehersomuch. Like really.

She makes the happiest most colorful dinner dishes and has these filtered Instagrammey photos and I really just want to go to her little kitchen and eat all the food. She sent me these Spicy Honey Mustard Roasted Cashews that were out of control delicious. They came in the mail and Chad and I were like ravenous snack monsters. He has gotten hip to the Leftovers Club plans and gets pretty excited about what people are sending me in the mail.

I need to do a better job of hiding the treats.

So anyway. I made Marie these Oatmeal Berry Crumb Bars. I had a whole other plan for what was going in the mail, but I have this berry-buying problem and have this compulsion to toss them in my cart every time I pass them and they look pretty (thank god for hydroponic gardening!).

These little bars are quick and super easy. The crust and the topping are the same but the crust is pressed and the topping is scattered. The cooked berry filling only takes a few minutes to become thick and jammy. These are so perfect with coffee and of course are super simple to stuff in the mail.

If you’d like to participate in the Leftovers Club you can find info HERE.

24-30 bars

Oatmeal Berry Crumb Bars

Prep Time: 10 minutes

Cook Time: 25 minutes

Total Time: 35 minutes

Oatmeal Berry Crumb Bars have a simple buttery oat crust topped with cooked berries and a sweet crumbly topping. Perfect with coffee!

Ingredients

For the Crust/Topping:

1 1/2 cups all purpose flour
1 1/2 cups quick oats (see note)
1 cup granulated sugar
1/2 teaspoon baking soda
3/4 cup COLD butter

For the Berry Filling:

3 cups assorted fresh (or frozen, unsweetened) berries (I used sliced strawberries, whole blueberries, and whole blackberries)
2 1/2 tablespoons granulated sugar
1 tablespoon lemon juice
2 tablespoons water
1 tablespoon cornstarch

Instructions

Preheat the oven to 375.
In a large bowl whisk together the flour, quick oats, sugar, and baking soda.
Cut in the butter using a box grater and then use your fingers to combine everything into coarse crumbs (some pieces will be larger and some will be very fine; just do your best to incorporate the butter and the largest pieces should be pea-sized).
Set 2 cups of the mixture aside and press the remaining crumbs into the bottom of an un-greased 9 X 13 pan.
Place the berries and sugar into a medium saucepan over medium high heat. Add the lemon juice, water, and cornstarch. Stir to coat. The liquid will simmer and the berries will mostly break down. Continue cooking and stirring for 3-4 minutes, until the mixture is a thick jam-like consistency.
Spoon the berries over the crust and spread it evenly.
Scatter the reserved crust loosely over the top of the berries, covering everything.
Bake for about 25 minutes. Let the bars cool completely before cutting.

Notes

If you only have old fashioned oats on hand you can pulse them in a blender of food processor once or twice to yield quick oats.

Nutrition Information:

Yield:

Serving Size:

1
Amount Per Serving: Calories: 143Total Fat: 6gSaturated Fat: 4gTrans Fat: 0gUnsaturated Fat: 2gCholesterol: 15mgSodium: 84mgCarbohydrates: 21gFiber: 1gSugar: 11gProtein: 2g

Recipe adapted from Taste of Home Baking Classics Blueberry Oat Bars

If you love the berry oat flavor you’ll also love this Raspberry Apple Pie with Oatmeal Cookie Crumble!

An InLinkz Link-up

Layla

Monday 22nd of February 2021

Delicious, thank you for the recipe 😊

Side note: I’m not sure if was because I used frozen berries but when I boiled the fruit and other ingredients it accumulated a lot of liquid so I had to add an additional tbsp of cornstarch to thicken it up. Otherwise, delicious and will be making again!

Rose Powers

Wednesday 29th of July 2020

These are wonderful! My husband likes them but wants more filling so will double next time. But they are great.

Heather Tullos

Thursday 30th of July 2020

Oh good! Thank you so much Rose! I am glad you enjoyed them!

Sharon

Friday 3rd of November 2017

I just wanted to say that my husband and I really enjoy your version of the oatmeal berry bars!!! I make the very often and my husband can practically eat the whole thing in just one day (so can I). It's sooooooo yummy! Thank you for this recipe!!

Thank you so much, Sharon! I love those too. That's an old but super good recipe!

Paul

Sunday 14th of September 2014

These are the best things ever! Even before adding the oatmeal I found myself licking the berries out of the pan!

Heather

Thanks so much, Paul! That is definitely one of my favorite recipes ever!

Natalie

Tuesday 29th of April 2014

I made these last night and just sampled them this morning. I found them to be a little too sweet, like I could taste and feel in my mouth the grains of white sugar in the crust. You actually can see the sugar crystals sparkling all over the topping. It looks nice but the sugar didn't dissolve at all, is this how it's supposed to be? Did that happen for anyone else? Especially without a dash of salt for contrast, it just feels too sweet.

Hi Natalie! Thanks for your feedback! I have never had any trouble with this recipe -- it's pretty old fashioned and simple, but I will agree that these bars are sweet! If you'd like to cut the sugar down, you may want to try brown sugar (more complex and maple-ey instead of just plain sweet), and a dash of salt will never hurt! I do have a question though, about the crystal appearance -- how did you cut the butter in? Every time I have ever made these (or any streusel) the flour coats the butter and sugar. I always use my box grater because it's faster AND because it gives me more uniform pieces/distributes more evenly. Hope this helps and let me know if you have any other questions!