Get those spoons ready, because this Mixed Berry Crisp is about to steal the show on your dessert table! Imagine a bubbling, jewel-toned layer of sweet-tart berries, all snuggled beneath a golden, oat-studded streusel that’s delightfully crunchy. The magic happens as everything bakes together, and the house fills with a buttery, fruity aroma. Whether you’re hosting friends or just craving something comforting and unfussy, Mixed Berry Crisp delivers pure joy—warm from the oven or even straight from the fridge.

Ingredients You’ll Need
You won’t need a pantry full of complicated ingredients—just a handful of kitchen staples and plenty of berries. Every item here brings something special, whether it’s a pop of color, a burst of flavor, or the perfect crumbly texture for that irresistible crisp topping.
- Mixed berries (5 cups): Use fresh or frozen—think strawberries, blueberries, raspberries, and blackberries for a juicy, colorful filling.
- Granulated sugar (¼ cup): Adds just enough sweetness to balance the tartness of the berries.
- Cornstarch (1 tablespoon): Thickens the berry juices, giving you luscious, not runny, results.
- Cinnamon (½ teaspoon): Brings a subtle warmth and elevates all those gorgeous berry flavors.
- All-purpose flour (1 cup): Forms the base of the crispy topping and creates that classic crumb.
- Rolled oats (¾ cup): Delivers an unmatched, hearty crunch in every bite of Mixed Berry Crisp.
- Brown sugar (½ cup, packed): Either light or dark; this gives the topping a lovely caramel note.
- Salt (¼ teaspoon): Balances sweetness and intensifies all the flavors.
- Unsalted butter (½ cup, cold, diced): Essential for those irresistible, buttery, craggy crisp bits.
- Vanilla ice cream: Optional for serving, but highly recommended for the dreamiest finishing touch.
How to Make Mixed Berry Crisp
Step 1: Prep Your Baking Dish
Start by preheating your oven to 375°F. Give your chosen baking dish—an 8-inch square or an 8 by 11-inch— a generous greasing. This keeps that precious berry filling from sticking and makes serving a breeze later.
Step 2: Mix the Berry Filling
Place your glorious mixed berries right into the prepared dish. Sprinkle over the granulated sugar, cornstarch, and cinnamon. Grab a spoon and gently stir until every berry is glistening and coated. Set this aside while you dream about that bubbling berry goodness.
Step 3: Prepare the Streusel Topping
In a separate bowl, combine the flour, rolled oats, brown sugar, and salt. Add the cold, diced butter on top. Here’s where your hands become the best tool—work the butter into the dry mixture until you have a crumbly texture with some bigger buttery bits. This ensures that signature crunchy bite to your Mixed Berry Crisp.
Step 4: Assemble and Bake
Sprinkle the crumbly streusel topping generously over the berry mixture. Be sure to spread it right to the edges (those corner pieces are coveted!). Slide the dish onto the center rack of your oven and bake for about 35 to 40 minutes, until the top is golden brown and the berries are bubbling up around the sides.
Step 5: Let it Cool and Serve
Remove your masterpiece from the oven and let it cool for at least 10 minutes. This helps the filling set just enough to cut neat portions (if you can wait that long). Serve warm with generous scoops of vanilla ice cream for true Mixed Berry Crisp glory.
How to Serve Mixed Berry Crisp

Garnishes
Beyond classic vanilla ice cream, try a dollop of softly whipped cream, a sprinkle of lemon zest for brightness, or a few fresh mint leaves for a pop of color. Even a dusting of powdered sugar works beautifully for a holiday-worthy finish.
Side Dishes
On the dessert table, Mixed Berry Crisp loves the company of freshly brewed coffee, black tea, or a glass of fruity dessert wine. For a brunch treat, pair with a creamy Greek yogurt or a tangy lemon custard on the side for a fun flavor contrast.
Creative Ways to Present
For casual gatherings, serve right from the baking dish for a cozy, family-style vibe. Hosting a special dinner? Spoon the crisp into individual ramekins before baking for personal-sized treats. You can even layer leftovers with yogurt and granola for a breakfast parfait!
Make Ahead and Storage
Storing Leftovers
Once fully cooled, cover the Mixed Berry Crisp and store it in an airtight container in the fridge. It’ll stay delicious for up to a week, which means dessert is always just a spoonful away!
Freezing
You can assemble the crisp topping in advance and freeze it for up to a month—just thaw in the fridge before using. The fully baked crisp also freezes well (protected with a double wrap), making it a quick-fix treat for surprise guests or late-night cravings.
Reheating
To restore that fresh-baked texture, pop chilled portions into a 350°F oven for 10-15 minutes, or zap single servings in the microwave for about 30 seconds. The topping crisps up again and the berries get lovely and juicy.
FAQs
Can I use frozen berries for Mixed Berry Crisp?
Absolutely! You can use fresh, frozen, or a combination. There’s no need to thaw frozen berries, but you may want to add an extra teaspoon of cornstarch, as they release more juice during baking.
Is Mixed Berry Crisp gluten-free?
With a simple swap—use a gluten-free all-purpose flour blend and gluten-free rolled oats—you can easily make this recipe gluten-free. Avoid using just almond or coconut flour, as they don’t offer the right texture.
What are the best berries to use?
The beauty of Mixed Berry Crisp is in its flexibility! Blueberries, strawberries, raspberries, and blackberries all work wonderfully. If you have only two types, go for it! The mixed variety is what brings depth and intrigue to the filling.
Can I make it vegan?
Yes! Swap the butter for a vegan alternative (or coconut oil for a subtle tropical note). Serve alongside your favorite non-dairy ice cream or coconut whipped cream.
How do I prevent a soggy topping?
Keep your butter cold and work it in just until crumbly—this creates those luscious, crispy clusters. Also, don’t cover the crisp while it cools; steam can soften the top layer.
Final Thoughts
If you’re after a truly satisfying dessert packed with color, flavor, and texture, you can’t go wrong with this Mixed Berry Crisp. Don’t be surprised if it disappears in minutes—so go ahead, grab some berries, and let this recipe become your new favorite treat!
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Mixed Berry Crisp Recipe
- Total Time: 50 minutes
- Yield: 6 servings
- Diet: Vegetarian
Description
This Mixed Berry Crisp is a delightful dessert featuring juicy, sweet-tart berries topped with a buttery oat streusel. Ready in under an hour, it’s perfect for using up summer berries and effortless enough for weeknights. Serve it warm with a scoop of vanilla ice cream for a comforting treat everyone will love.
Ingredients
For the Filling
- 5 cups mixed berries (fresh or frozen, such as strawberries, blueberries, blackberries, raspberries)
- 1/4 cup granulated sugar
- 1 tablespoon cornstarch
- 1/2 teaspoon cinnamon
For the Streusel Topping
- 1 cup all-purpose flour
- 3/4 cup rolled oats
- 1/2 cup brown sugar, packed (light or dark)
- 1/4 teaspoon salt
- 1/2 cup unsalted butter, diced and cold
To Serve
- Vanilla ice cream (optional)
Instructions
- Prepare the Oven & Dish: Preheat your oven to 375°F (190°C). Grease an 8-inch square or 8×11-inch rectangular baking dish with butter or nonstick spray.
- Make the Berry Filling: Add the mixed berries to the greased baking dish. Sprinkle the granulated sugar, cornstarch, and cinnamon over the berries. Toss gently to combine, ensuring the berries are coated evenly. Set aside.
- Make the Streusel Topping: In a medium bowl, combine the flour, rolled oats, brown sugar, and salt. Add the cold, diced butter. Use your hands or a pastry cutter to rub the butter into the dry ingredients until the mixture is crumbly, resembling coarse crumbs.
- Assemble the Crisp: Evenly sprinkle the streusel topping over the berry filling, covering as much of the surface as possible.
- Bake: Place the dish in the preheated oven and bake for 35–40 minutes, or until the topping is golden brown and the filling is bubbling around the edges.
- Serve: Let the crisp cool slightly. Serve warm, ideally with a scoop of vanilla ice cream on top if desired.
Notes
- Storage: Store cooled leftovers in an airtight container in the fridge for up to 7 days. Enjoy cold, at room temperature, or reheat briefly in the oven or microwave.
- Make Ahead: The streusel topping can be made in advance and stored in the fridge for 3 days or frozen up to 1 month.
- Substitutions: Granulated sugar can be swapped with coconut sugar, honey, or maple syrup. Use vegan butter or coconut oil for a vegan option. For gluten-free, choose gluten-free all-purpose flour and oats. If needed, replace cornstarch with all-purpose flour.
- Prep Time: 10 minutes
- Cook Time: 40 minutes
- Category: Desserts
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1/6 of the recipe
- Calories: 320
- Sugar: 26g
- Sodium: 110mg
- Fat: 13g
- Saturated Fat: 8g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 50g
- Fiber: 5g
- Protein: 3g
- Cholesterol: 33mg