Strawberry Oat Bars
Updated Aug 28, 2026
Strawberry oat bars made with an oat crust, fresh strawberry filling, and a crumble top. An easy layered bar with jammy berries and a crisp oat topping.
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Strawberries get eaten faster in my house than any other fruit, so if I’m making these strawberry oat bars, I have to hide a pound under, like, a bag of kale before everyone eats them. I use them for the middle layer with just a little sugar and lemon, then add the oat crumble on top. All in all, these strawberry oatmeal bars are pretty simple to make and soo good! The strawberries get all jammy in the oven and the top stays nice and crumbly.
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RECIPE TESTING NOTES
For the past 10 years, I’ve tested every recipe before sharing it with you! These notes give you a peek into the process of developing this strawberry oat bar recipe.
Okay, so for this recipe, the strawberries gave me the most to noodle over, because fresh berries release a lot of water as they bake, and I didn’t want the bottom crust to get soggy. Tossing the strawberries in the sugar and lemon helped with that since it draws out the water. Dicing them small also helped me spread the berries out more evenly so they bake evenly.
Which brings me to the cooling. When I cut into the bars while they were still warm, the filling was loose, and they fell apart into a mess. While delicious, that defeats the purpose of making bars, so letting them cool completely in the pan, so the filling has time to set up, is the difference between a bar you can pick up and a spoonable crumble.
Happy Cooking!
– Yumna
Strawberry Oat Bar Ingredients
- Strawberry filling: I use fresh strawberries and dice them fairly small. Cane sugar and fresh lemon juice. If the berries are really wet after washing, I pat them dry first, so I’m not adding extra water to the filling. I don’t recommend using frozen strawberries for this recipe; even after they thaw, they are still really watery. Fresh lemon juice is best for this recipe.
- Base ingredients: Coconut oil, cane sugar, an egg, all-purpose flour, oat flour, cinnamon, and salt make up the bottom layer. Let the melted coconut oil cool slightly before mixing it with the egg so the egg doesn’t start cooking. If I don’t have oat flour, I blend rolled oats until very fine and use that instead. You can use all-purpose flour, though.
- Crumble ingredients: Oat flour, all-purpose flour, melted coconut oil, cane sugar, salt, and rolled oats make up the topping. Old-fashioned rolled oats work best for the crumble on these strawberry oat bars. I would not use quick oats, as they will give the topping a finer, less crumbly texture.
How to Make Strawberry Oat Bars
These step-by-step photos walk you through how to make the Rosemary Chicken. For the full ingredient list and detailed instructions, head to the recipe card below, or skip straight to the → Oatmeal Strawberry Bars Recipe
1. Mix the Base
I blend the coconut oil, sugar, and egg first, then add both flours, cinnamon, and salt. I stop mixing once everything comes together into a soft dough.
2. Prepare the Strawberries
Dice the strawberries, toss with the cane sugar and lemon juice until everything is evenly coated. Let sit.
3. Start the Crumble
I mix the flours, coconut oil, cane sugar, and salt in a separate bowl until the mixture starts looking crumbly.
4. Add the Rolled Oats
I stir in the rolled oats just until they’re evenly distributed and the mixture holds together in loose clumps.
5. Press in the Base
I spread the chilled dough into the parchment-lined pan and press it into an even layer, especially around the corners.
6. Add the Strawberry Layer
I spoon the strawberries over the base and spread them all the way to the edges so every bar gets some filling.
7. Sprinkle on the Oat Crumble
I scatter the crumble evenly over the strawberries without pressing it down. Keeping it loose helps those little oat clusters stay intact as they bake.
8. Bake Until Golden
I bake until the crumble is golden on top and the strawberry filling is bubbling a little around the edges. Then I let the pan cool completely before cutting the bars.
Full Strawberry Oatmeal Bar Recipe
Strawberry Oat Bars Recipe
Video
Ingredients
Base
- ¼ cup coconut oil melted
- ¼ cup cane sugar
- 1 large egg
- ½ cup all-purpose flour
- ½ cup oat flour
- ¼ teaspoon cinnamon
- ¼ teaspoon salt
Filling
- 1 pound strawberries small diced
- 2 tablespoons cane sugar
- 1 tablespoon lemon juice
Crumble
- ¼ cup oat flour
- ¼ cup all-purpose flour
- ¼ cup coconut oil melted
- ¼ cup cane sugar
- ¼ teaspoon salt
- 1 ½ cup rolled oats
Instructions
Make base
- Preheat oven to 350°F. Line an 8” x 8” baking pan with parchment paper.
- In a large bowl, blend coconut oil, sugar, and egg together with a stand mixer or handheld beaters on medium high until combined.
- Add all-purpose flour, oat flour, cinnamon and salt, blending on low until just combined.
- Press mixture into prepared pan. Pat into an even layer. Chill in fridge for at least 20 minutes while preparing remaining layers.
Make filling
- Toss the diced strawberries with sugar and lemon juice. Set aside.
Make crumble topping
- In a large bowl, combine the flours, coconut oil, sugar and salt.
- Add the rolled oats and toss with your fingers until well mixed and crumbly.
Assemble
- On the chilled base, spread an even layer of the strawberry mixture.
- Sprinkle the crumble on top of the strawberries as evenly as possible, but do not press down.
- Bake for 45-50 minutes, or until golden on top and strawberries are slightly bubbling at edges.
- Cool in pan for at least 20 minutes before removing. Allow to cool completely before slicing into 9 squares.
Notes
Nutrition
Nutrition information provided is an estimate. It will vary based on cooking method and specific ingredients used.
Recipe Variations
- Mix in white chocolate chips. Stir a handful into the crumble topping before baking. The sweetness of white chocolate and the tartness of strawberry is a great combination.
- Stir a teaspoon of vanilla extract into the base. It’s not in the original recipe but it will boost the flavor of the crust.
- Make them into crumble cups. Press the base into a muffin tin instead of a square pan, add the strawberry filling, and top with crumble then bake for a cute, on the go version.
Recipe Tips
- Add the base in dollops. Rather than trying to press the whole mixture from one edge, drop several portions around the pan and push them together with your fingertips. It’s easier to get an even layer this way.
- Don’t press down the crumble. Sprinkle it loosely over the strawberry layer. Pressing it down compacts it and prevents it from getting crispy.
- Wait before cutting. Let the bars cool in the pan for at least 20 minutes, then let them cool completely before slicing. Cutting too soon makes them fall apart.
Troubleshooting
I usually see this when they’re sliced while they’re still warm. The filling needs time to cool and set, and the base firms up as it cools too. I let the whole pan cool completely before lifting and slicing.
Very ripe strawberries can release quite a bit of liquid, especially once they’re mixed with sugar. I make sure the berries are dry after washing and wait to toss the filling together until I’m ready to assemble the bars.
Comments
These bars are SO delicious! So moist, and light, and just the right level of sweetness. The only thing I might modify a smidgen when I make them again is how much crumble topping I make. I was looking at the photos of your creation, Yumna, and the topping doesn’t appear to be as thick a layer as mine. Because there was so much topping my bars were a little crumbly on top. (Yes, I used an 8×8 baking dish too). I think I’ll cut the rolled oats by half and use just 3/4 of a cup next time. Other than that, these are a total hit at this house. 😊 Thank you for this ‘So good’ recipe!
So happy the bars were a hit in your house, Rennie! Thank you! Your plan for reducing the amount of crumble sounds great. I hope you enjoy them even more after that tweak!
Hi Yumna, Can I used something other than coconut oil and oat flour? I’m trying to use what I have in my cupboard lol. Thank you, Rhonda
Hi Rhonda, you could try all-purpose flour and butter! If you have rolled oats, you could also blend them in a high-speed blender or food processor to make oat flour.
Can you substitute the fresh strawberries, sugar, and lemon juice part with just strawberry jam?
I haven’t tried using jam instead of fresh berries myself, but I think it would work out well as long as the jam is thick and not too runny. Let me know if you try it!
Just found this recipe and am excited to try but can I use coconut flour instead of oat flour? Thanks for your help.
Hi Tina, great question. Absolutely, you can substitute the oat flour with coconut! You’ll have to come back and let me know what you think of them after you make it.
Must try recipe! Loved making it, i used Michigan grown strawberries- bought them from my local farmers market.
Oh My Yum!
Thank you so much! That sounds so fresh and perfect!
it sounds delicious, but I couldn’t make it. Ads made it impossible to read the recipe, which kept jumping around and was entirely covered by a big white square that I guess was supposed to be an ad. I ended up throwing out a bowl of sugar coconut oil and egg. I spent 4 minutes trying to find the rating box to write this review.
If it helps, if you scroll down to the very bottom of the page, there will be a recipe card that you can read off of or print!
I made it and it turn out so good 👍 really so good. My kid’s are have healthy eating week in their school and they ask me to make thz. 🙃
I would love to share pics
Hi Miriam, so glad you and your kids enjoyed the strawberry oat bars! I would love for you to share pictures with me on Instagram! I wish you could share them on the site, but we haven’t found an effective solution to do that yet.
These came out great!! I used regular flour instead of oat flour and it was still amazing. Thanks ❤
Thank you! That’s perfect!
Can I substitute oat flour with whole wheat?
It should still work, yes!
Oh my god.. this Tastes sooo goood (whenever I try any of your recipes I have to say this when am tasting it lol), I made them tonight and my family ate the whole thing.. will definitely make this once again but am thinking I’ll do apples 🍏 instead.. can’t wait 😁.. thank you so much
That makes me so, so happy to hear! I love that!! Let me know how it goes with the apples.
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