Looking for a simple, soul-satisfying dessert that balances sweet and tart flavors? This Blueberry Rhubarb Crisp is the ultimate comfort treat—featuring juicy fruit baked under a buttery, golden oat topping. Whether you’re hosting a gathering or enjoying a quiet evening in, this crisp is a delightful way to end any meal.
Let’s dive into how to make this irresistible dessert from scratch!
🫐 Why You’ll Love This Blueberry Rhubarb Crisp
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Combines sweet blueberries with tangy rhubarb for a balanced flavor
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Topped with a crunchy oat crisp that adds texture and warmth
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No special tools or mixers needed—just basic ingredients and a baking dish
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A versatile dessert that works with fresh or frozen fruit
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Perfect served warm with vanilla ice cream or cold with whipped cream
🛒 Ingredients You’ll Need
For the Filling:
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3 cups rhubarb, chopped (fresh or frozen)
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2 cups blueberries, fresh or frozen
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¾ cup granulated sugar
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2 tbsp cornstarch
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1 tbsp lemon juice
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1 tsp vanilla extract
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Pinch of salt
For the Crisp Topping:
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1 cup old-fashioned rolled oats
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½ cup all-purpose flour
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½ cup light brown sugar, packed
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½ cup unsalted butter, cold and cubed
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1 tsp cinnamon
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Pinch of salt
👩🍳 Step-by-Step Instructions
1. Preheat & Prepare the Filling
Preheat your oven to 350°F (175°C).
In a large mixing bowl, combine rhubarb, blueberries, granulated sugar, cornstarch, lemon juice, vanilla extract, and a pinch of salt.
Toss until the fruit is evenly coated. Pour this mixture into a greased 8×8-inch baking dish.
2. Make the Crisp Topping
In a separate bowl, mix together the oats, flour, brown sugar, cinnamon, and salt.
Add the cold, cubed butter and use a pastry cutter or your fingers to work it into the dry ingredients until you have a crumbly texture.
3. Assemble & Bake
Sprinkle the crisp topping evenly over the fruit mixture.
Bake, uncovered, for 40–45 minutes, or until the topping is golden and the fruit juices are bubbling at the edges.
4. Cool & Serve
Let the crisp cool for at least 15 minutes to allow the filling to set slightly.
Serve warm for the ultimate comfort dessert—especially with a scoop of vanilla ice cream or a dollop of whipped cream.
⏱️ Prep & Bake Time
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Prep Time: 15 minutes
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Cook Time: 45 minutes
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Total Time: 1 hour
🔁 Variations to Try
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Add nuts: Mix in chopped pecans or walnuts into the topping for extra crunch.
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Go gluten-free: Use certified gluten-free oats and substitute flour with almond or oat flour.
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Spice it up: Add a pinch of nutmeg or ginger for a warm spice twist.
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Swap fruits: Try mixing in strawberries, blackberries, or apples depending on the season.