These strawberry oatmeal bars are one of those recipes you’ll find yourself making on repeat all summer long. They have a tender shortbread-style crust, a homemade strawberry chia jam filling, and a buttery oat crumble topping that gives them a bakery-style finish without being overly sweet. They’re honestly so ideal.
Whether you’re looking for an easy breakfast bar, a satisfying afternoon snack, or a simple dessert to share, these gluten-free strawberry oatmeal bars are a great option to keep on hand. I intentionally kept the added sugar on the lower side so the fresh strawberries can really shine, while still creating a bar that’s flavorful, balanced, and delicious.
Why You’ll Love These Strawberry Oatmeal Bars
Unlike many oatmeal bars that rely on an all-oat base, these bars use an almond flour shortbread crust for a sturdier texture and cleaner slice.
The homemade strawberry chia jam adds natural sweetness along with fiber from both the strawberries and chia seeds, while the oat crumble topping brings just the right amount of crunch. Healthy fats from almond flour and nuts help make these bars more satisfying, making them just as fitting for meal prep breakfasts as they are for an afternoon snack or healthier dessert.
They’re also naturally gluten free, can easily be made dairy free by swapping in coconut oil for the butter, and are a delicious way to use fresh summer strawberries. Prepare to be obsessed!
A Bakery-Style Strawberry Bar Made with Simple Ingredients
One of my favorite things about these homemade strawberry oatmeal bars is that they’re made with simple, wholesome ingredients you can feel good about serving your family.
Fresh strawberries, almond flour, rolled oats, chia seeds, and a touch of maple syrup come together for a recipe that’s easy enough for a weekend baking project but practical enough for everyday snacking.
The combination of the buttery crust, lower-sugar strawberry filling, and golden oat crumble creates a strawberry crumble bar that’s every bit as satisfying as one from a bakery, with ingredients you probably already have in your kitchen. Hope you love them!
Ingredients You’ll Need:
For the crust:
- 1 ½ cups almond flour (I like Bob’s Red Mill)
- 1/3 cup + 1 tablespoon gluten-free all-purpose flour blend
- ¼ cup melted butter, slightly cooled
- 2 tablespoons maple syrup (I like 365 by Whole Foods Market)
- 1 teaspoon vanilla extract
- Pinch sea salt
To make the strawberry chia jam filling:
- Strawberries
- Maple syrup
- Lemon juice
- Lemon zest
- Vanilla extract
- Sea salt
- Black pepper
- Chia seeds
- Arrowroot starch (I like Terrasoul Superfoods Organic)
For the oat crumble topping:
- Rolled oats
- Almond flour
- Gluten‑free flour (all‑purpose blend)
- Chopped pecans or walnuts
- Coconut sugar
- Cinnamon
- Sea salt
- Maple syrup
- Melted butter
- Vanilla extract
How To Make Strawberry Oatmeal Bars
Looking for the full recipe?
Scroll down to the Recipe Card below for complete instructions & measurements.
These strawberry oatmeal bars are layered with a buttery shortbread crust, homemade strawberry chia jam, and a golden oat crumble topping, making them perfect for meal prep breakfasts, afternoon snacks, or a healthier dessert.
- Make the crumble topping. Mix together the dry ingredients, then stir in the melted butter, maple syrup, and vanilla until small crumble clusters form. Chill the mixture in the refrigerator while you prepare the rest of the bars.
- Prepare and bake the crust. Stir together the crust ingredients, then firmly press the mixture into a parchment-lined baking pan. Bake until the edges are lightly golden, then let it cool slightly.
- Cook the strawberry filling. While the crust bakes, simmer most of the chopped strawberries with the maple syrup, lemon juice, lemon zest, vanilla, chia seeds, and seasonings until thick and jammy.
- Finish the homemade jam. Stir in the arrowroot starch along with the remaining fresh strawberries, then let the filling rest for a few minutes to thicken even more.
- Assemble the bars. Spread the strawberry filling over the baked crust, then sprinkle the chilled oat crumble evenly over the top, leaving a few pockets of strawberry filling visible.
- Bake until golden. Return the pan to the oven until the crumble is lightly golden and the strawberry filling is bubbling around the edges.
- Cool, chill, and slice. Let the bars cool completely before chilling them in the refrigerator until fully set. Slice into bars and enjoy for breakfast, dessert, or an easy grab-and-go snack.
Recipe Substitutions & Questions
Here are a few easy substitutions and swaps to help you customize these Strawberry Oatmeal Bars based on what you have on hand or your dietary needs.
- Make it dairy free: Swap the butter for melted coconut oil anywhere it’s used in the recipe.
- Adjust the sweetness: Use 3 tablespoons maple syrup in the filling for a less sweet, snack-style bar, or 4 tablespoons for a sweeter, more dessert-like result. You can also use the full amount of coconut sugar in the crumble topping for a richer finish.
- Use frozen strawberries: Frozen strawberries work well if fresh aren’t in season—just thaw and drain off any excess liquid before cooking the jam.
- Swap the nuts: Pecans and walnuts are both delicious in the crumble, or you can omit them altogether if needed (the topping will simply have a little less crunch).
- No arrowroot starch? Cornstarch can be used in its place in an equal amount to help thicken the strawberry filling.
- Try a different berry: This recipe also works well with raspberries, blackberries, blueberries, or a mixed berry combination. Keep in mind that sweeter berries may require slightly less maple syrup, while more tart berries may benefit from a little extra.
- Need a nut-free option? Almond flour is key to the texture of the shortbread crust, so I don’t recommend substituting it in this recipe. If you need a nut-free version, I’d recommend using a recipe specifically developed and tested for that purpose.
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FAQs
Can I make these strawberry oatmeal bars ahead of time?
Yes! These bars are a great make-ahead recipe. Once they’ve cooled completely, store them in an airtight container in the refrigerator for up to 5 days. I actually think they’re even better the next day after the filling has had time to fully set.
Can I freeze strawberry oatmeal bars?
Absolutely. Let the bars cool completely, then slice and transfer them to a freezer-safe container with parchment paper between layers. Freeze for up to 3 months. Thaw overnight in the refrigerator or let them sit at room temperature for about 30 minutes before enjoying.
Can I use frozen strawberries instead of fresh?
Yes. Frozen strawberries work well when fresh berries aren’t in season. Just thaw them first and drain off any excess liquid before cooking the filling so the strawberry chia jam thickens properly.
Are these strawberry oatmeal bars gluten free?
Yes, as written, these strawberry oatmeal bars are gluten free as long as you use certified gluten-free oats and a gluten-free all-purpose flour blend. They’re also easy to make dairy free by substituting melted coconut oil anywhere the recipe calls for butter.
Why did my strawberry filling turn out runny?
The filling will continue to thicken as it cools thanks to both the chia seeds and arrowroot starch. If it still seems thin while cooking, let it simmer for another minute or two, then allow the bars to cool completely before slicing for the cleanest, bakery-style finish.
Can I use a different fruit?
Definitely. Raspberries, blueberries, blackberries, or a mixed berry combination all work well in this recipe. Depending on the sweetness of your fruit, you may want to slightly adjust the amount of maple syrup in the filling.
Are strawberry oatmeal bars healthy?
That depends on the recipe, but these bars were intentionally made with ingredients that offer more staying power than a traditional dessert bar. Fresh strawberries provide vitamin C and fiber, chia seeds add fiber and omega-3 fats, and almond flour contributes healthy fats and a bit of protein. Because they’re made with less added sugar than many bakery-style bars, they’re a balanced option for breakfast, snack time, or dessert.
If You Loved These Strawberry Oatmeal Bars, Try These Next
- Frozen Blackberry Cobbler Bars
- Healthy Raspberry Crumble Bars (Gluten-Free, Dairy-Free)
- Viral Strawberry Bark (Easy Healthy Dessert)
- Strawberry Shortcake Trifles (Gluten-Free & Dairy-Free)
- No-Bake Cinnamon Cereal Bars (Gluten-Free, Dairy-Free)
- Healthy Berry Oatmeal Protein Muffins (Easy + Gluten-Free)
Strawberry Oatmeal Bars
Ingredients
For the crust:
- 1 ½ cups almond flour, (I like Bob's Red Mill)
- 1/3 cup + 1 tablespoon gluten-free all-purpose flour blend
- ¼ cup melted butter, slightly cooled
- 2 tablespoons maple syrup, (I like 365 by Whole Foods Market)
- 1 teaspoon vanilla extract
- Pinch sea salt
For the strawberry chia jam filling:
- 4 cups chopped strawberries, (≈3 cups cooked + 1 cup folded in) (about 1 lb. 7 oz. after tops removed)
- 3-4 tablespoons maple syrup, adjust to lower end for less sugar preference
- 1.5 tablespoons lemon juice
- 1 teaspoon lemon zest
- 2 teaspoons vanilla extract
- Pinch sea salt
- Pinch of black pepper
- 1.5 tablespoons chia seeds
- 1.5 tablespoons arrowroot starch, (I like Terrasoul Superfoods Organic)
For the oat crumble topping:
- Heaping 1/3 cup rolled oats
- ¼ cup almond flour
- 1 tablespoon gluten free flour (all purpose blend)
- 2 tablespoons chopped pecans or walnuts
- 1 ½ teaspoons coconut sugar
- ¼ teaspoon cinnamon
- 1/8 teaspoon sea salt
- 1 tablespoon maple syrup
- 2 ½ tablespoons melted butter
- ¼ teaspoon vanilla extract
Instructions
- Preheat oven to 350°F. Line an 8×8-inch pan with parchment paper.
For the oat crumble topping:
- First, make the crumble by mixing all dry ingredients: oats, almond flour, gf flour, nuts, coconut sugar, cinnamon, and salt.
- Add melted butter, maple syrup and vanilla, then use your hands to squeeze and press the mixture into small pea sized and slightly larger clusters (don’t break them fully into sand).
- Let the topping sit in the fridge for 10–15 minutes so the butter firms (this helps the crumbles stay intact instead of melting into a flat layer).
For the crust:
- Next, make the crust. In a medium bowl, combine all of the crust ingredients: almond flour, gluten-free all-purpose flour blend, melted & slightly cooled butter, maple syrup vanilla extract, and salt. Then press the combined crust ingredients evenly into the pan.
- Bake for 14 -16 minutes, until lightly golden at the edges. Remove from oven, and set aside to cool while you prepare the jam.
For the strawberry chia jam filling:
- Meanwhile, while the shortbread is baking, make the filling. In a saucepan, combine 3 cups of the chopped strawberries, maple syrup, lemon juice, lemon zest, vanilla, salt, pinch of black pepper and chia seeds.
- Cook over medium heat for 10-12 minutes, stirring often, and mashing as needed, until the berries break down and look jammy. Remove from heat, and then stir in arrowroot starch, and remaining 1 uncooked cup of chopped strawberries. Let jam sit 10-15 minutes to thicken (while shortbread cools slightly).
To assemble & serve:
- Spread the strawberry filling over the baked crust, then scatter the crumble clusters over the strawberry filling, pressing gently to adhere to the jam. Leave some jam peeking through the crumble.
- Bake for 25-30 minutes, until the topping is golden and the filling is bubbling at the edges.
- Cool completely, then chill for several hours in the fridge before slicing for the cleanest bars. This cooling step matters for strawberry bars because fruit layers set best once fully cooled.
- Once the bars have set & chilled, serve and enjoy as a breakfast or anytime snack, dessert, or whenever you prefer!
To Store:
- Store in an airtight container in the refrigerator for up to 5 days. Enjoy chilled or let them sit at room temperature for 10–15 minutes before serving.
- Option to freeze in an airtight container for up to 3 months, though fridge storage is recommended.
Notes
- Butter: Substitute melted coconut oil for a dairy-free version.
- Maple syrup: Use 3 tablespoons in the filling for a less sweet, snack-style bar or 4 tablespoons for a sweeter, dessert-style bar.
- Coconut sugar: Use the full amount in the crumble topping for a sweeter, more dessert-like finish, or reduce slightly if preferred.
- Fresh strawberries: Frozen strawberries work well—just thaw and drain any excess liquid before cooking the filling.
- Pecans: Swap for walnuts, or omit the nuts altogether if preferred.
- Arrowroot starch: Substitute cornstarch in an equal amount.
- Strawberries: Try raspberries, blueberries, blackberries, or a mixed berry blend instead. You may want to adjust the maple syrup slightly depending on how sweet your fruit is.
- Almond flour: I don’t recommend substituting it, as it’s essential for the texture of the shortbread crust.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
