Feeling nostalgic for the warmth of home-baked treats? The Strawberry Rhubarb Crumb Bars Recipe is your answer! This delightful dessert brings together tart rhubarb and sweet strawberries in a buttery crumb crust. Read on to discover how easy it is to make these delicious bars that are perfect for any occasion.
Ingredients List for Strawberry Rhubarb Crumb Bars
- 2 cups chopped strawberries
- 2 cups chopped rhubarb
- 3/4 cup granulated sugar
- 2 tbsp cornstarch
- 1 tbsp lemon juice
- 2 1/2 cups all-purpose flour
- 1 cup rolled oats
- 1 cup brown sugar
- 1 tsp ground cinnamon
- 1 tsp baking powder
- 1/4 tsp salt
- 1 cup unsalted butter, cold and cubed
How To Make Strawberry Rhubarb Crumb Bars Step-by-Step
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C) and prepare a 9×13-inch baking pan by greasing it lightly or lining it with parchment paper for easy removal.
Step 2: Prepare the Fruit Filling
In a mixing bowl, combine the chopped strawberries, rhubarb, granulated sugar, cornstarch, and lemon juice. Stir gently until the fruit is well-coated. Set this mixture aside for later use.
Step 3: Make the Crumb Mixture
In another bowl, mix together the flour, oats, brown sugar, ground cinnamon, baking powder, and salt. Make sure all the dry ingredients are evenly combined.
Step 4: Add the Butter
Cut the cold, cubed butter into the dry mixture. Use a pastry cutter or your fingers to work the butter in until the mixture resembles coarse crumbs. This creates a flaky texture that will make your bars delicious.
Step 5: Form the Crust
Take about two-thirds of the crumb mixture and press it firmly into the bottom of the prepared baking pan. Make sure it’s even, as this will be the base for your bars.
Step 6: Add the Fruit Filling
Spread the prepared fruit filling evenly over the crust. Ensure it’s distributed well so that every bite has a burst of flavor.
Step 7: Top with Remaining Crumbs
Sprinkle the remaining crumb mixture over the fruit filling. Don’t worry about getting it perfect; a few gaps are okay!
Step 8: Bake
Place the pan in the preheated oven and bake for 40–45 minutes. You want the top to be slightly golden and the filling to be bubbling.
Step 9: Cool and Slice
Once baked, let the crumb bars cool completely in the pan. When cooled, slice them into squares or rectangles. Enjoy!

Time Breakdown
- Preparation Time: 15 minutes
- Bake Time: 40–45 minutes
- Cooling Time: 1 hour (or more)
- Total Time: Approximately 2 hours
Chef’s Notes & Pro Tips About Strawberry Rhubarb Crumb Bars
- Fresh Ingredients: Use fresh strawberries and rhubarb for the best flavor. Frozen fruit can be used, but make sure to thaw and drain excess moisture.
- Butter Temperature: Ensure your butter is cold; this will help make a flakier crumb topping.
- Taste Test: Before baking, taste the fruit mixture and add more sugar if you prefer it sweeter.
- Cutting Bars: Use a sharp knife to cut the bars after they have cooled. For best results, heat the knife with hot water before cutting.
Reasons Why You’ll Love Strawberry Rhubarb Crumb Bars
- Flavor Balance: The sweet strawberries and tart rhubarb create a beautiful flavor combination that everyone loves.
- Versatile Dessert: Perfect for summer picnics or cozy winter nights with a scoop of ice cream.
- Easy to Make: With simple ingredients and steps, these bars are beginner-friendly.
- Make-Ahead Friendly: You can prepare them ahead of time for gatherings or a simple family treat.
Serving Suggestions for Strawberry Rhubarb Crumb Bars
- Serve warm with a scoop of vanilla ice cream for a delightful dessert.
- Dust with powdered sugar for a beautiful presentation.
- Pair with freshly whipped cream for an extra indulgent treat.
- Enjoy with a cup of tea or coffee for a delightful afternoon snack.
Tips For Success
- Adjust Sweetness: Depending on the tartness of your rhubarb, you can adjust the sugar in the filling.
- Prevent Soggy Base: Make sure to bake the crust first for a few minutes if your filling is very juicy.
- Cool Completely: Allow the bars to cool fully in the pan before slicing; this helps them set up nicely.
- Use Quality Ingredients: High-quality butter and fresh produce can elevate the taste significantly.
Flavor Variations
- Berry Mix: Swap out some strawberries for raspberries or blueberries for a mixed berry version.
- Nutty Crust: Add chopped nuts, like pecans or walnuts, to the crumb topping for extra crunch.
- Coconut Twist: Incorporate shredded coconut into the crumb mixture for a tropical vibe.
- Spiced Up: Add a pinch of nutmeg or ginger for a different spiced taste.
How To Storage Strawberry Rhubarb Crumb Bars
- Room Temperature: Keep the crumb bars in an airtight container at room temperature for up to 3 days.
- Refrigeration: Store in the fridge for up to a week to extend freshness.
- Freezing: Freeze cut bars in a single layer on a baking sheet, then transfer to a container; they can last up to 3 months.
- Thawing: To enjoy frozen bars, let them thaw in the refrigerator overnight before serving.
- Reheating: Warm in the oven at a low temperature for a few minutes for a fresh-out-of-the-oven taste.
FAQs About Strawberry Rhubarb Crumb Bars
- Can I substitute the rhubarb? Yes, you can use other tart fruits like sour cherries or cranberries if rhubarb is not available.
- Is it necessary to use lemon juice? Lemon juice helps balance the sweetness and enhances the overall flavor of the fruit filling.
- Can I make these gluten-free? Yes, substitute all-purpose flour with gluten-free flour blend and ensure all other ingredients are gluten-free.
- How can I make this vegan? Use plant-based butter and replace the egg with a flax egg or other vegan binding options.
Closing Notes
Strawberry Rhubarb Crumb Bars are a delightful dessert that everyone will love. With their perfect balance of sweet and tart flavors, they are a wonderful treat for any occasion. Whether you bake them for a family gathering or just for yourself, these bars are sure to bring a smile. Enjoy the process of baking and the finished product, and make sure to share with friends and family—you won’t want to miss this scrumptious delight!

Strawberry Rhubarb Crumb Bars
Ingredients
Fruit Filling
- 2 cups chopped strawberries Fresh is best, but frozen can be used.
- 2 cups chopped rhubarb Fresh rhubarb recommended.
- 3/4 cup granulated sugar Adjust to taste.
- 2 tbsp cornstarch Used to thicken the filling.
- 1 tbsp lemon juice Balances sweetness.
Crust and Topping
- 2 1/2 cups all-purpose flour
- 1 cup rolled oats Old-fashioned oats preferred.
- 1 cup brown sugar Packed firmly.
- 1 tsp ground cinnamon
- 1 tsp baking powder
- 1/4 tsp salt
- 1 cup unsalted butter, cold and cubed Very cold for a flaky crust.
Instructions
Preparation
- Preheat your oven to 350°F (175°C) and prepare a 9×13-inch baking pan by greasing it lightly or lining it with parchment paper.
- In a mixing bowl, combine the chopped strawberries, rhubarb, granulated sugar, cornstarch, and lemon juice. Stir gently until well-coated and set aside.
- In another bowl, mix together flour, oats, brown sugar, ground cinnamon, baking powder, and salt.
- Cut the cold, cubed butter into the dry mixture until it resembles coarse crumbs.
- Press about two-thirds of the crumb mixture into the bottom of the prepared baking pan.
- Spread the prepared fruit filling evenly over the crust.
- Sprinkle the remaining crumb mixture over the fruit filling.
Baking
- Bake for 40–45 minutes until the top is slightly golden and the filling is bubbling.
Cooling
- Let the crumb bars cool completely in the pan before slicing them into squares or rectangles.










