Strawberry Oatmeal Crumble Bars

Strawberry Oatmeal Crumble Bars are the kind of dessert that effortlessly brings together fresh fruit, a buttery crust, and a golden oat crumble topping into one irresistible bite. Whether you’re looking for a snack, a simple dessert, or a make-ahead treat for a gathering, these bars offer a delicious solution. Made with a hearty oat and flour crust that doubles as the crumble topping, they’re layered with a sweet and slightly tart strawberry filling that bursts with freshness in every mouthful. The combination of textures—the chewy oat base, juicy fruit center, and crumbly golden top—makes these bars as satisfying to eat as they are easy to make.

These bars are perfect for spring and summer when strawberries are at their peak, but they can be made year-round with fresh or frozen strawberries. They hold up beautifully for picnics, potlucks, or packed lunches and are just as good at room temperature as they are slightly warmed. With their rustic look and naturally sweet flavor, Strawberry Oatmeal Crumble Bars check all the boxes for a wholesome dessert that’s still indulgent enough to impress.

Why You’ll Love This Recipe

1. Fresh and Fruity Flavor – These bars are bursting with the natural sweetness of strawberries enhanced with a touch of lemon.
2. Simple Pantry Ingredients – Made with everyday staples like oats, flour, butter, and sugar.
3. Easy to Make – No mixer required, and both crust and topping come from the same dough.
4. Perfect Texture – A soft, buttery base with a jammy strawberry middle and crisp oat crumble topping.
5. Versatile Treat – Ideal as a dessert, snack, or even breakfast-on-the-go.

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Ingredients

Crust and Crumble Topping:

• Unsalted butter, melted
• All-purpose flour
• Old-fashioned oats
• Granulated sugar
• Light brown sugar, packed
• Salt

Strawberry Layer:

• Fresh strawberries, coarsely chopped
• Granulated sugar
• Lemon juice
• Cornstarch

Variations

• Berry Mix – Add blueberries or raspberries to the strawberry layer for a mixed berry version.
• Gluten-Free – Use a gluten-free flour blend and certified gluten-free oats for a gluten-free option.
• Vegan – Substitute the butter with a vegan alternative like coconut oil or plant-based butter.
• Nutty Crust – Add chopped nuts like almonds or pecans to the crumble for added texture and flavor.

How to Make the Recipe

Step 1 – Prepare the Crust and Crumble

In a mixing bowl, combine melted butter, flour, oats, granulated sugar, brown sugar, and salt. Stir until well combined and crumbly. Set aside ¾ cup of the mixture for the topping. Press the remaining mixture into the bottom of a greased or parchment-lined 8×8-inch baking dish to form the crust.

Step 2 – Make the Strawberry Filling

In another bowl, mix the chopped strawberries with sugar, lemon juice, and cornstarch until evenly coated. The cornstarch helps thicken the strawberry layer as it bakes.

Step 3 – Assemble the Bars

Evenly spread the strawberry mixture over the prepared crust in the baking dish. Sprinkle the reserved crumble topping evenly over the fruit layer.

Step 4 – Bake

Bake in a preheated 350°F (175°C) oven for 35–40 minutes, or until the top is golden brown and the strawberry layer is bubbling. Remove from oven and let cool completely before slicing into bars.

Tips for Making the Recipe

• Use Fresh Strawberries – Fresh strawberries provide the best flavor and texture, but you can also use frozen (thawed and drained).
• Cool Before Slicing – Let the bars cool fully so they hold their shape when sliced.
• Press Firmly – Make sure to press the crust mixture firmly into the baking dish to ensure it holds together after baking.
• Line the Pan – Use parchment paper for easy removal and clean cuts.

How to Serve

Serve these bars at room temperature or chilled, either on their own or with a scoop of vanilla ice cream for a more decadent dessert. They’re also perfect for serving at brunch, as an afternoon snack, or packed in a picnic basket.

Make Ahead and Storage

Storing Leftovers

Store the bars in an airtight container at room temperature for up to 2 days or in the refrigerator for up to 5 days.

Freezing

These bars freeze well. Wrap tightly in plastic wrap and foil, then freeze for up to 2 months. Thaw in the fridge before serving.

Reheating

To enjoy warm, reheat a bar in the microwave for 10–15 seconds.

FAQs

1. Can I use frozen strawberries?

Yes, but thaw and drain them well before using to avoid too much moisture.

2. Can I make these bars gluten-free?

Absolutely—use gluten-free oats and a gluten-free flour blend.

3. Can I reduce the sugar?

You can slightly reduce the sugar in both the crust and filling, but the bars may be less sweet and crumbly.

4. How long do the bars last?

They last up to 5 days in the fridge and up to 2 months in the freezer.

5. Can I use other fruits?

Yes, you can substitute strawberries with blueberries, raspberries, blackberries, or a mix.

6. How do I keep the crumble topping crispy?

Bake until golden brown and don’t cover the bars when storing at room temperature.

7. Can I use quick oats instead of old-fashioned oats?

Old-fashioned oats are best for texture, but quick oats can work in a pinch.

8. What can I use instead of lemon juice?

You can use orange juice or a bit of vinegar, but lemon juice gives the best brightness.

9. Can I double the recipe?

Yes, double all ingredients and bake in a 9×13-inch pan. Baking time may need to increase slightly.

10. Should I refrigerate before cutting?

Chilling makes them easier to cut cleanly, but it’s not required if you let them cool fully at room temperature.

Conclusion

Strawberry Oatmeal Crumble Bars are a simple yet satisfying treat that’s perfect for any occasion. Whether you’re serving them as a dessert, breakfast bar, or snack, they deliver on flavor, texture, and ease. With their golden, buttery crumble and fresh strawberry filling, these bars will quickly become a go-to favorite in your kitchen.

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