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Welcome to your new favorite spring and summer dessert! These delightful strawberry rhubarb crumb bars combine the perfect balance of sweet and tart flavors in every bite. They are incredibly easy to make, yet impressive enough to share at any gathering. Get ready to bake a truly delicious treat that celebrates the season.
Why You’ll Love These Strawberry Rhubarb Crumb Bars
These simple strawberry rhubarb bars are a true crowd-pleaser for many wonderful reasons:
- Enjoy irresistible buttery oat crumb layers that provide amazing texture.
- Savor a gooey, sweet-tart fruit filling bursting with seasonal goodness.
- The recipe is simple to make, requiring no special mixer or advanced skills.
- These are the ultimate comfort dessert, perfect for any occasion from picnics to potlucks.
- They celebrate peak seasonal flavors, bringing the best of spring and summer to your table.
Ingredients for Strawberry Rhubarb Crumb Bars
Making these delicious bars requires just a few common pantry staples and fresh produce. Here is everything you need to bake the ultimate strawberry rhubarb crumb bars.
For the Crumb Layers:
- 1 1/3 cups (188g) all-purpose flour
- 1/2 tsp baking soda
- 1/4 tsp salt
- 1 1/3 cups (120g) rolled old-fashioned oats
- 1/2 cup (110g) packed light brown sugar
- 1/2 cup (110g) granulated sugar
- 3/4 cup (170g) unsalted butter, melted
- 2 tsp vanilla extract
For the Strawberry Rhubarb Filling:
- 1 3/4 cups (273g) hulled and diced strawberries (from 12 oz whole)
- 1 1/2 cups (190g) diced rhubarb, sliced 1/4-inch thick
- 1 Tbsp fresh lemon juice
- 1/3 cup (71g) granulated sugar
- 1 Tbsp (9g) cornstarch
Notes & Substitutions
Always use old-fashioned rolled oats for the best texture; quick oats become too mushy. Adjust the amount of sugar in the fruit filling to match your desired sweetness, especially if your fruit is very tart or sweet. For a dairy-free option, substitute melted coconut oil for the butter. You can also experiment with a 1:1 gluten-free all-purpose flour blend if you need to make these bars gluten-free.
Equipment Needed
Baking these fantastic fruit bars doesn’t require any fancy tools. You likely have everything on hand already!
- 9×9-inch baking dish
- Parchment paper
- Large mixing bowls
- Whisk or spatula
- Measuring cups and spoons
- Wire cooling rack
How to Make Strawberry Rhubarb Crumb Bars
Follow these simple, step-by-step instructions to create perfect strawberry rhubarb crumb bars. This recipe is designed to be beginner-friendly and straightforward.
Prepare the Crumb Layers
First, preheat your oven to 350°F (175°C). Butter a 9 by 9-inch baking dish, then line it with parchment paper, allowing some overhang on the sides for easy removal. Butter the parchment paper as well.
In a large mixing bowl, whisk together the flour, baking soda, and salt. Add in the rolled oats, light brown sugar, and granulated sugar. Whisk everything to blend, using your fingertips to break up any small clumps of brown sugar.
In a separate small bowl, whisk the vanilla extract into the melted butter. Pour this melted butter mixture over the dry oat mixture. Stir with a spatula until the mixture is evenly moistened and comes together.
Take 2/3 of this crumb mixture and press it firmly and evenly into the bottom of your prepared baking dish. Set aside the remaining 1/3 of the crumb mixture; you will use this for the topping.
Make the Strawberry Rhubarb Filling
Next, prepare your vibrant fruit filling. Add the hulled and diced strawberries and diced rhubarb to a medium mixing bowl. Toss them gently with the fresh lemon juice. The lemon juice brightens the fruit flavors.
According to culinary science, cornstarch acts as a powerful thickening agent when mixed with liquids and heated.
In a small separate bowl, whisk together the granulated sugar and cornstarch. This mixture helps thicken the filling as it bakes. Pour the sugar and cornstarch mixture over the strawberry and rhubarb. Toss gently until all of the fruit is evenly coated.
Assemble and Bake
Now, it’s time to assemble your delicious strawberry rhubarb dessert bars. Pour the prepared fruit filling evenly over the bottom crumb layer in the baking dish. Spread it out to cover the entire base.
Evenly sprinkle the remaining 1/3 of the crumb mixture over the top of the fruit filling. Do not press it down; leave it loose for a crumbly topping.
Bake in your preheated oven for about 45 to 50 minutes. The top should be golden brown and crisp, and the fruit filling should be visibly bubbling around the edges. This bubbling indicates that the filling is cooking through and thickening properly.
Once baked, remove the pan from the oven. Cool the bars completely on a wire rack before attempting to cut them. Cutting them warm can cause the bars to crumble. After cooling, use the parchment paper overhang to lift the entire slab of bars out of the dish. Cut into squares and serve.
Pro Tips for the Best Results
Achieve perfect strawberry rhubarb oat bars every time with these helpful tips:
- Always cool the bars completely before slicing. This prevents them from falling apart and ensures clean cuts.
- Use ripe, flavorful strawberries and firm, crisp rhubarb for the best taste and texture in your filling.
- Dice both the rhubarb and strawberries uniformly. This ensures even cooking and a consistent texture throughout the filling.
- Prevent soggy bottoms by ensuring the bars are fully baked and the filling is bubbling. Don’t underbake these delicious bars!
- Avoid overmixing the crumb dough. Mix until just combined to keep the crumb tender and flaky.
- Properly prepare your pan with butter and parchment paper. This guarantees easy removal of your finished bars.
Serving Suggestions, Storage, and Variations
These strawberry rhubarb crumb bars are incredibly versatile. Enjoy them in many ways and store them properly for lasting freshness.
Serving Ideas
- Serve the bars warm with a scoop of creamy vanilla ice cream for a delightful dessert experience.
- Add a dollop of freshly whipped cream to enhance the richness and balance the tartness.
- Enjoy a square with your morning coffee or alongside some plain yogurt for a lovely breakfast treat.
- These bars are perfect for potlucks, picnics, or family gatherings, always a welcome addition.
Storage Instructions
For best results and to maintain quality, follow general guidelines for storing baked goods at room temperature.
Store leftover strawberry rhubarb crumble bars at room temperature in an airtight container. This helps maintain the crumbly texture of the topping. Avoid refrigerating, as it can make the crumb soggy. They will stay fresh and delicious for 3-4 days. You can also freeze baked or unbaked bars for longer storage. Wrap them tightly in plastic wrap and then foil.
Flavor Variations
- Add a teaspoon of ground cinnamon to the crumb mixture for a warm, spiced flavor.
- Include some fresh orange zest in the fruit filling for an extra bright and citrusy note.
- Mix in other berries like raspberries or blueberries with the strawberries and rhubarb for a mixed fruit bar.
- For a subtle spicy kick, try adding a pinch of ground ginger to the fruit filling.
Nutrition Information
| Nutrient | Amount |
|---|---|
| Calories | 305 kcal |
| Total Fat | 12 g |
| Saturated Fat | 7 g |
| Cholesterol | 30 mg |
| Sodium | 100 mg |
| Total Carbs | 46 g |
| Dietary Fiber | 2 g |
| Total Sugar | 25 g |
| Protein | 2 g |
| Vitamin A | 200 IU |
| Vitamin C | 25 mg |
Frequently Asked Questions (FAQ)
Find quick answers to common questions about making strawberry rhubarb crumble bars.
- Can I use frozen fruit? Yes, you can use frozen strawberries and rhubarb. Thaw them completely and drain any excess liquid thoroughly before mixing.
- Why are my bars soggy? Soggy bars are likely underbaked or were cut before cooling completely. Ensure the filling bubbles and cool fully.
- Can I make these gluten-free? Absolutely! Substitute the all-purpose flour with a 1:1 gluten-free all-purpose flour blend for the crumb layers.
- Can I prepare ahead? You can assemble the bars a few hours ahead of time and keep them chilled before baking. Bake as directed.
- How do I select good rhubarb? Choose firm, crisp stalks of rhubarb that are vibrant red or pink. Avoid limp or browning stalks.
Conclusion
These strawberry rhubarb crumb bars are the perfect blend of sweet and tart, bringing sunshine to your plate. We hope you discovered how simple and rewarding it is to bake this delightful treat. You will love the incredible flavor and ease of this recipe. So go ahead, bake a batch, share with loved ones, and savor the taste of the season. Explore more beginner-friendly fruit bar recipes on our site!
The BEST Strawberry Rhubarb Crumb Bars
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C). Butter a 9 by 9-inch baking dish, then line it with parchment paper, allowing some overhang on the sides for easy removal. Butter the parchment paper as well.
- In a large mixing bowl, whisk together the flour, baking soda, and salt. Add in the rolled oats, light brown sugar, and granulated sugar. Whisk everything to blend, using your fingertips to break up any small clumps of brown sugar.
- In a separate small bowl, whisk the vanilla extract into the melted butter. Pour this melted butter mixture over the dry oat mixture. Stir with a spatula until the mixture is evenly moistened and comes together.
- Take 2/3 of this crumb mixture and press it firmly and evenly into the bottom of your prepared baking dish. Set aside the remaining 1/3 of the crumb mixture; you will use this for the topping.
- Add the hulled and diced strawberries and diced rhubarb to a medium mixing bowl. Toss them gently with the fresh lemon juice.
- In a small separate bowl, whisk together the granulated sugar and cornstarch.
- Pour the sugar and cornstarch mixture over the strawberry and rhubarb. Toss gently until all of the fruit is evenly coated.
- Pour the prepared fruit filling evenly over the bottom crumb layer in the baking dish. Spread it out to cover the entire base.
- Evenly sprinkle the remaining 1/3 of the crumb mixture over the top of the fruit filling. Do not press it down; leave it loose for a crumbly topping.
- Bake in your preheated oven for about 45 to 50 minutes. The top should be golden brown and crisp, and the fruit filling should be visibly bubbling around the edges.
- Once baked, remove the pan from the oven. Cool the bars completely on a wire rack before attempting to cut them. After cooling, use the parchment paper overhang to lift the entire slab of bars out of the dish. Cut into squares and serve.
