Mixed Berry Crumble Bars

As the warm aroma of baked berries fills your kitchen, these Mixed Berry Crumble Bars emerge from the oven, golden and inviting. This recipe takes just about 45 minutes from start to finish, blending sweet, tangy berries with a delightful oat crumble that holds everything together beautifully. The simplicity of the ingredients ensures a wholesome treat that satisfies your sweet tooth while staying firmly rooted in comfort.

This recipe is perfect for anyone who loves dessert bars with a fruity twist. Great for summer gatherings or cozy winter evenings, these bars can be made ahead of time and stored for later enjoyment, making them a convenient addition to any occasion.

Why You’ll Love This Recipe

• The oat crumble topping provides a satisfying crunch with every bite.
• Fresh mixed berries create a burst of flavor that delights.
• It’s easy to make, requiring no special skills or tools.
• You’ll be rewarded with a visually stunning treat that’s perfect for sharing.

What You’ll Need

Gather the following ingredients to create these Mixed Berry Crumble Bars:

For the Crust

• 1 cup rolled oats
• 1 cup all-purpose flour
• 1/2 cup brown sugar
• 1/2 cup unsalted butter, melted
• 1/2 teaspoon cinnamon
• 1/4 teaspoon salt

For the Filling

• 2 cups mixed berries (e.g., strawberries, blueberries, raspberries)
• 2 tablespoons sugar
• 1 tablespoon cornstarch
• 1 teaspoon vanilla extract

Unsalted butter can be replaced with coconut oil for a dairy-free option.

Substitutions & Swaps

• Rolled oats can be swapped with quick oats.
• Use any combination of berries for the filling.
• Brown sugar can be replaced with granulated sugar.
• Coconut oil or vegan butter can replace unsalted butter.

How to Make It

Follow these simple steps to create your crumble bars.

Mix the crust

In a bowl, mix together the rolled oats, flour, brown sugar, melted butter, cinnamon, and salt until crumbly.

Press into the pan

Press about 2/3 of the mixture into the bottom of the prepared pan to form a crust.

Combine the filling

In another bowl, combine the mixed berries, sugar, cornstarch, and vanilla extract. Pour the berry mixture over the crust in the pan.

Top with remaining crust

Sprinkle the remaining oat mixture over the top of the berries.

Bake

Bake for 25-30 minutes until the top is golden and the berries are bubbly.

Cool and serve

Let cool before cutting into bars and serving.

How to Store It

Fridge: keep in an airtight container for up to 5 days.
Freezer: yes, for longer shelf life up to 3 months.
Reheat: microwave on low for 10-15 seconds.

Tips for Best Results

• Use fresh berries for the best flavor and texture.
• Let the bars cool completely before cutting for cleaner slices.
• Adjust sweetness by varying the amount of sugar based on berry tartness.
• Feel free to add nuts or chocolate chips for extra texture.

Serving Suggestions

• Serve with a dollop of whipped cream for added indulgence.
• Pair with a scoop of vanilla ice cream for a delightful contrast.
• Enjoy as a sweet treat during weekend brunches with friends and family.