If you ever need a little burst of sunshine in your day, forget complicated layered cakes. Sometimes, all you need is something wonderfully simple, perfectly sweet, and studded with fruit. That’s exactly what our recipe for the best **Strawberry Oat Bars** delivers! Seriously, these bars are my go-to afternoon snack because they come together faster than you can brew a pot of tea. We’re talking about an incredibly easy, tested recipe that pairs a crumbly, buttery base with a thick, gorgeous layer of strawberry filling. Trust me, once you try this basic, satisfying assembly, you’ll be making these oat bars every single week. They just work, every time, without fail!
Why You Will Love These Strawberry Oat Bars
I promise, these are not the fiddly, fussy bars you might be picturing. These Strawberry Oat Bars hit all the right notes without any of the headache. They are seriously addictive!
- They are lightning fast—you only need about ten minutes of hands-on time before they hit the oven.
- The texture is what I love most: that buttery oat crumble melts right into creamy strawberry jam.
- They hold their shape perfectly once cooled, making them ideal for lunchboxes or grab-and-go breakfasts.
- If you love the look of these, check out my thoughts on raspberry crumble bars too!
Essential Ingredients for Perfect Strawberry Oat Bars
Keeping the ingredient list short and sweet is one of the main reasons these bars are always in rotation at my house. You probably have everything you need right now! Remember, I always recommend following exactly what the recipe calls for, especially when it comes to melted butter versus softened butter. It truly makes a difference in how the oat base sets up. For more general baking wisdom, you can check out my favorite tips right here!
For the Oat Base and Topping
This is the magic blend that gives us that lovely crunchy-chewy texture. You’ll need 1 and 1/2 cups of whole rolled oats—not the instant kind! Mix those with 1/2 cup of regular all-purpose flour, 1/2 cup of tightly packed brown sugar, just 1/2 teaspoon of baking soda, and a tiny pinch of salt. Don’t forget the fat: 1/2 cup of unsalted butter, melted down until perfectly liquid.
For the Strawberry Filling
For the gooey center, we want good, thick flavor. You need 1 full cup of strawberry jam or preserves. If you decide to make your own compote instead, just make sure it’s cooked down nicely so it doesn’t make your bars watery when they bake.
Step-by-Step Instructions for Amazing Strawberry Oat Bars
I know you’re excited to get these into the oven, so let’s make sure we do this right! Baking these **Strawberry Oat Bars** is super straightforward, but the order of operations is key to getting that perfect, sturdy base and crumbly top. If you need a refresher on general baking confidence, I put together some general tips over here. Preheat your oven to 350°F right away and make sure you grab that 8×8 inch baking pan. You’ll want to lightly grease it up—a little spray or some parchment hanging over the edges works wonders!
Preparing the Base Layer of Your Strawberry Oat Bars
First things first: mix up all your dry base ingredients in a bowl—that’s your oats, flour, brown sugar, baking soda, and salt. I always give that a good whisk to make sure the leavener is evenly distributed. Now pour that lovely melted butter right over the top of everything. Mix it gently until it just looks like wet sand, nothing more. Take about two-thirds of this oat mixture and press it down really firmly into the bottom of your prepared 8×8 pan. You want a solid layer here, so use the bottom of a drinking glass to really compact it!
Layering the Jam and Topping for the Best Strawberry Oat Bars
This is where the beautiful strawberry flavor comes in! Carefully spread that whole cup of jam evenly over the oat base. Try not to drag the jam into the edges too much, keep it neat and contained. Once the jam is smooth, take that remaining one-third of the oat mixture and just crumble it loosely right over the top of the strawberry layer. Don’t press this part down—we want it crumbly for texture!

Baking and Cooling Your Strawberry Oat Bars
Everything is prepped, so pop that pan into your preheated 350-degree oven. They usually need about 25 to 30 minutes. You’re looking for that top crumble to turn a nice golden brown, so keep an eye on it toward the end. Here is the most important part for a clean cut: you have to let these cool down completely in the pan! If you try to slice them while they are warm, the jam will just ooze out everywhere. Patience, my friend!
Expert Tips for Perfect Strawberry Oat Bars
Even though these Strawberry Oat Bars are famously easy, there are a couple of little tricks I use every time that guarantee they come out looking and tasting absolutely professional. I learned a lot about baking stability over the years, and these tips are game-changers for bar cookies!
First, about that chilling I mentioned—if you like a really firm bar that slices into perfect squares without any stickiness at all, don’t skip this! Once they have cooled *mostly* on the counter, slip the entire pan into the refrigerator for at least an hour. That firm chill sets up the butter beautifully and makes cutting easy. You can see some of my other favorite pointers on technique here!

Now, let’s talk about sogginess. The biggest risk with jam bars is usually the bottom turning a little mushy against the fruit layer. My secret weapon against a soggy bottom? I lightly toast the bottom oat mixture for about 5 minutes before I even add the jam! Pop the base layer into the oven alone at 350°F for 5 minutes, let it cool for just a minute, then add your jam and the topping and continue baking the full time. It creates a tiny barrier that locks in the flavor without letting it turn gummy.
Lastly, remember that filling alternative I mentioned? If you use homemade strawberry compote instead of store-bought jam, the flavor is so bright and fresh! Just make sure that compote is thick. If it’s too runny, though, you’ll need to cook it down on the stove until it’s almost as sturdy as the jam so those bars set up correctly.
Storage and Reheating for Your Strawberry Oat Bars
The best part about these treats is that they actually taste better the next day! You don’t have to worry about freezing these unless you’re planning way ahead. For everyday snacking, storage is super simple.
Once your Strawberry Oat Bars are completely cool—and I mean totally cooled down, no residual heat whatsoever—layer them between sheets of wax paper or parchment paper in a sturdy, airtight container. I find that if I just stack them straight up without paper in between, the jam layer can sometimes stick to the bottom of the bar above it, especially if the weather is humid.

Keep that sealed container right on your counter at room temperature. They hold up beautifully for almost a week! Seriously, they never last that long in my house, but they stay nicely soft and chewy for about five or six days.
Now, for reheating—I usually don’t bother! These are designed to be eaten at room temperature or even chilled straight from the fridge, which makes them delightfully dense. If you absolutely insist on warming one up for a cozy treat, just zap it for about 10 seconds in the microwave. Be careful though; that jam warms up fast and gets super hot! A quick warm-up is great if you’re topping it with a scoop of vanilla ice cream, but otherwise, room temp is the way to go for the best texture on these simple oat bars.
Variations on Classic Strawberry Oat Bars
Part of the fun of a recipe this simple is knowing you can totally customize it without messing up the basic structure. I never mind mixing things up a little bit, especially when it’s snowing outside and I’m craving something different than my usual strawberry jam! Since the crust-to-filling ratio here is so perfect, you can swap out the fruit flavor and get a whole new dessert.
If you’re feeling something tart, don’t even hesitate—apricot preserves work magically here. Just like the strawberry version, the apricot brings a wonderful sweetness that balances out the brown sugar in the crumble. And speaking of that crumble, you can easily add some extra texture into the oat base itself. This isn’t a huge change, but it adds a nice little snap!
Try mixing in about 1/4 cup of chopped nuts like pecans or almonds right into the dry oat mixture before you add the butter. They toast up wonderfully during baking. Or, for an even healthier crunch, try mixing in some chia seeds or flax seeds with your rolled oats. Just don’t go overboard; we still want that buttery, chewy texture to shine through.
And of course, if you’ve had enough strawberry (which I argue is impossible!), you can jump over and check out my thoughts on my raspberry crumble bars. Sometimes a sharp raspberry is just what the doctor ordered!
Serving Suggestions for These Sweet Strawberry Oat Bars
Okay, so you’ve nailed the baking, waited patiently for the cooling—now comes the fun part: deciding how to eat these amazing **Strawberry Oat Bars**! While I’m perfectly happy grabbing one straight out of the container for a mid-morning snack, they elevate so nicely with just a little something extra.
My absolute favorite way to turn an ordinary oat bar into an all-out dessert is simple: a scoop of good quality vanilla bean ice cream. When the bar is slightly cool from the fridge, the contrast between the cold, creamy ice cream and the slightly chewy, room-temperature oat bar is just heavenly. It’s so comforting!
If you’re serving these after dinner, a big dollop of freshly whipped cream is also fantastic. You can even try sweetening that whipped cream lightly, maybe with a tiny dash of vanilla extract or even a little powdered sugar if you want to go all out. If you are looking for frosting ideas instead of cream, I have a great simple white frosting recipe that works nicely if you spread it super thin!
But honestly, these oat bars are so flavorful on their own, they really shine with just a hot beverage. They are perfect alongside a strong cup of coffee in the morning, or even just a nice, calming cup of herbal tea in the evening. The buttery crust and the sweet jam just pair so well with those simple drinks. No fuss required, just pure enjoyment!
Frequently Asked Questions About Strawberry Oat Bars
You know I love hearing your questions! When baking from scratch, sometimes things don’t work out exactly as planned, or maybe you realize you’re missing one little ingredient. Don’t panic! These **jam bars** are so forgiving, but here are the common sticking points I hear about most often when people try this simple recipe for the first time.
I have a whole section dedicated to general baking trouble-shooting here if you are having other general issues!
Can I use fresh strawberries instead of jam in these oat bars?
Oh, I totally wish you could! Fresh strawberries are amazing, but for this *specific* recipe structure, you really need the thick consistency of jam or preserves. Fresh berries hold way too much water, and if you don’t pre-cook them down until they look like thick syrup, they will just steam your oat base and both the bottom and the top will turn out soggy. Stick to the jam for these **Strawberry Oat Bars**, or you’ll have to fully cook the fresh berries down first, which adds extra steps!
How do I prevent the bottom layer of my oat bars from becoming dry?
This usually happens when the butter isn’t mixed in quite enough, or if the base layer wasn’t pressed down firmly enough into the pan. Remember when I talked about mixing the melted butter into the dry ingredients? You want it mixed until it’s just combined, like wet sand, yes, but you have to make sure that butter coats every bit of that oat and flour mixture! Then, really press that two-thirds portion into the pan with the bottom of a heavy glass. A well-packed, well-buttered base is your insurance policy against dryness!
Estimated Nutritional Data for Strawberry Oat Bars
Now, nobody bakes these **Strawberry Oat Bars** thinking they are a health food—they are a delicious, buttery treat, full stop! But, since I get asked about it all the time, I wanted to give you a rough idea of what you’re looking at per serving based on the standard measurements in the recipe. Honestly, the jam contributes most of the sugar, but the oats give us a nice little bump of fiber!
Keep in mind that these numbers are just estimates. If you use a different brand of jam, or if you add any optional mix-ins like nuts, the count will shift a bit. I always find these figures helpful just to know generally what we’re working with!
- Serving Size: 1 bar
- Calories: Approximately 180
- Total Fat: About 8g (with only 5g being saturated)
- Carbohydrates: Roughly 25g
- Protein: A solid 3g!
- Sugar Content: Around 15g
- Fiber: About 2g
So there you have it! They are certainly satisfying, and that little bit of protein and fiber helps make these much better tasting than those ultra-processed snack bars you grab at the checkout counter. Dig in!
Print
Simple Strawberry Oat Bars
- Total Time: 40 min
- Yield: 16 bars 1x
- Diet: Vegetarian
Description
Make these easy oat bars with a sweet strawberry filling.
Ingredients
- 1 1/2 cups rolled oats
- 1/2 cup all-purpose flour
- 1/2 cup packed brown sugar
- 1/2 teaspoon baking soda
- 1/4 teaspoon salt
- 1/2 cup unsalted butter, melted
- 1 cup strawberry jam or preserves
Instructions
- Preheat your oven to 350 degrees Fahrenheit. Lightly grease an 8×8 inch baking pan.
- In a medium bowl, combine the rolled oats, flour, brown sugar, baking soda, and salt.
- Pour the melted butter over the dry ingredients and mix until just combined.
- Press two-thirds of the oat mixture evenly into the bottom of the prepared pan.
- Spread the strawberry jam evenly over the oat base.
- Crumble the remaining one-third of the oat mixture over the jam layer.
- Bake for 25 to 30 minutes, or until the topping is golden brown.
- Let the bars cool completely in the pan before cutting into squares.
Notes
- For a firmer bar, chill the baked bars for at least one hour before slicing.
- You can use homemade strawberry compote instead of jam for a fresher flavor.
- Prep Time: 10 min
- Cook Time: 30 min
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 bar
- Calories: 180
- Sugar: 15
- Sodium: 80
- Fat: 8
- Saturated Fat: 5
- Unsaturated Fat: 3
- Trans Fat: 0
- Carbohydrates: 25
- Fiber: 2
- Protein: 3
- Cholesterol: 15
Keywords: strawberry, oat bars, baked dessert, jam, sweet snack

