Description
These Strawberry Rhubarb Crumble Bars are the perfect spring and summer dessert! Made with a buttery oat crumble crust, sweet strawberries, tart rhubarb, and a golden crumb topping, these easy dessert bars are bursting with fresh seasonal flavor. Perfect for potlucks, picnics, family gatherings, or an afternoon sweet treat, this homemade recipe is simple to make and absolutely irresistible.
Ingredients
For the Crust and Crumble Topping
- 1½ cups all-purpose flour
- 1 cup old-fashioned rolled oats
- ¾ cup brown sugar
- ½ teaspoon baking powder
- ¼ teaspoon salt
- ¾ cup unsalted butter, melted
- 1 teaspoon vanilla extract
For the Strawberry Rhubarb Filling
- 2 cups fresh strawberries, diced
- 2 cups fresh rhubarb, diced
- ½ cup granulated sugar
- 2 tablespoons cornstarch
- 1 tablespoon lemon juice
- 1 teaspoon vanilla extract
Instructions
Step 1: Prepare the Oven
Preheat oven to 350°F (175°C).
Line a 9×9-inch baking pan with parchment paper for easy removal.
Step 2: Make the Crumble Mixture
In a large bowl combine:
- Flour
- Oats
- Brown sugar
- Baking powder
- Salt
Add melted butter and vanilla extract.
Mix until crumbly.
Step 3: Create the Crust
Reserve about 1½ cups of crumble mixture for topping.
Press the remaining mixture firmly into the bottom of the prepared pan.
Step 4: Prepare the Filling
In a separate bowl combine:
- Strawberries
- Rhubarb
- Sugar
- Cornstarch
- Lemon juice
- Vanilla
Mix until evenly coated.
Step 5: Assemble the Bars
Spread fruit filling evenly over the crust.
Sprinkle reserved crumble mixture over the top.
Cover the fruit completely.
Step 6: Bake
Bake for 40–45 minutes or until:
- Filling is bubbling
- Topping is golden brown
Step 7: Cool Completely
Allow bars to cool in the pan for at least 2 hours.
This helps the filling set properly.
Step 8: Slice and Serve
Lift bars from pan using parchment paper.
Cut into squares and serve.
Notes
Chill the bars completely before slicing to help them hold their shape and create clean cuts.
Fresh or frozen strawberries and rhubarb can be used; if using frozen fruit, thaw and drain excess liquid first.
Store leftover crumble bars in an airtight container in the refrigerator for up to 5 days for the best freshness.
- Prep Time: 20
- Cook Time: 45
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 bar per serving
- Calories: 310 calories
