Simple Berry Crumble Oat Topping

Featured in: Quick Sweet Options

This warm berry crumble combines a juicy mix of fresh or frozen berries tossed with sugar and lemon juice, topped with a crisp oat crumble made from rolled oats, flour, brown sugar, cinnamon, and cold butter. Baked until golden and bubbling, it offers a comforting dessert perfect for two servings. Enjoy it warm, optionally paired with vanilla ice cream for extra richness.

This small batch treat is quick to prepare and easy to customize with various berries or added nuts for crunch, delivering a naturally sweet finish with a tender fruit base beneath a buttery oat topping.

Updated on Mon, 23 Feb 2026 17:50:19 GMT
A warm mixed berry crumble with golden oat topping, baked until bubbling and served in a cozy ramekin. Save
A warm mixed berry crumble with golden oat topping, baked until bubbling and served in a cozy ramekin. | tirrakitchen.com

There's something deeply comforting about a warm berry crumble fresh from the oven—the way the fruit bubbles up through a golden, buttery topping, filling your kitchen with the sweet scent of baked berries and cinnamon. This Simple Berry Crumble with Oat Topping is the perfect small-batch dessert for two, combining juicy mixed berries with a crisp, wholesome oat crumble that's as easy to make as it is delicious. Whether you're treating yourself after a long day or sharing a cozy moment with someone special, this rustic dessert delivers all the warmth and satisfaction of a classic fruit crumble without any fuss.

A warm mixed berry crumble with golden oat topping, baked until bubbling and served in a cozy ramekin. Save
A warm mixed berry crumble with golden oat topping, baked until bubbling and served in a cozy ramekin. | tirrakitchen.com

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What makes this berry crumble truly special is its versatility and simplicity. You can use fresh or frozen berries—whatever's in season or sitting in your freezer—and the recipe comes together in minutes with just two bowls and your fingertips. The crumble topping strikes the perfect balance between crispy and tender, with rolled oats adding heartiness, brown sugar bringing caramel notes, and a hint of cinnamon tying everything together. It's the kind of dessert that feels both homemade and effortless, ideal for weeknight indulgence or a last-minute dinner party finale.

Ingredients

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  • Fruit Filling: 1 1/2 cups mixed berries (fresh or frozen; e.g., blueberries, raspberries, blackberries, strawberries), 2 tablespoons granulated sugar, 1 teaspoon lemon juice, 1 teaspoon cornstarch
  • Oat Crumble Topping: 1/4 cup rolled oats, 1/4 cup all-purpose flour, 3 tablespoons light brown sugar (packed), 1/4 teaspoon ground cinnamon, pinch of salt, 2 tablespoons unsalted butter (cold and diced)

Instructions

Step 1: Preheat and Prepare
Preheat the oven to 350°F (175°C).
Step 2: Prepare the Berry Filling
In a small bowl, gently toss the berries with granulated sugar, lemon juice, and cornstarch until coated.
Step 3: Fill the Ramekins
Divide the berry mixture between two small ramekins (about 6 oz each) or use a single small baking dish.
Step 4: Make the Crumble Topping
In another bowl, combine oats, flour, brown sugar, cinnamon, and salt. Add diced cold butter and use your fingertips to mix until a crumbly texture forms.
Step 5: Top the Berries
Sprinkle the oat crumble evenly over the berries.
Step 6: Bake
Bake for 25–30 minutes, until the topping is golden brown and the berries are bubbling.
Step 7: Cool and Serve
Let cool for a few minutes before serving. Enjoy warm, optionally with a scoop of vanilla ice cream.

Zusatztipps für die Zubereitung

For the best crumble topping, make sure your butter is cold and diced into small pieces—this helps create those desirable clumps and ensures a crispy, golden finish. Work the butter into the dry ingredients quickly with your fingertips to avoid melting it. If using frozen berries, there's no need to thaw them first; just toss them straight from the freezer with the sugar, lemon juice, and cornstarch. The cornstarch is essential for thickening the berry juices as they bake, preventing a watery filling. If your berries are particularly tart, feel free to add an extra tablespoon of sugar to the filling. Don't skip the lemon juice—it brightens the berry flavor and balances the sweetness beautifully.

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Varianten und Anpassungen

This recipe is wonderfully adaptable to suit your preferences and dietary needs. For a gluten-free version, simply substitute a gluten-free flour blend for the all-purpose flour and ensure your oats are certified gluten-free. Want extra crunch? Add 2 tablespoons of chopped pecans or sliced almonds to the crumble topping. You can also experiment with different spices—try adding a pinch of nutmeg or cardamom alongside the cinnamon for a more complex flavor profile. If you prefer a less sweet dessert, reduce the brown sugar in the topping to 2 tablespoons. For a single-serving version, halve all ingredients and bake in one ramekin for about 20–25 minutes.

Serviervorschläge

This berry crumble is best enjoyed warm, straight from the oven, when the topping is at its crispiest and the berries are bubbling with sweet, tart juices. Serve it with a generous scoop of vanilla ice cream that melts into the warm fruit, creating a delightful contrast of temperatures. Whipped cream or crème fraîche also make excellent companions, adding a cool, creamy element. For a more indulgent treat, drizzle with caramel sauce or a spoonful of mascarpone. This dessert pairs beautifully with a cup of hot tea or coffee, making it perfect for an afternoon treat or after-dinner indulgence. If you have leftovers, they can be reheated gently in the oven or microwave, though the topping will soften slightly.

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| tirrakitchen.com

This Simple Berry Crumble with Oat Topping proves that the best desserts don't have to be complicated. With just a handful of ingredients and minimal effort, you can create a warm, comforting treat that tastes like it came from a bakery. The combination of tart, juicy berries and sweet, buttery oat crumble is timeless and universally loved—a dessert that brings smiles whether it's a quiet evening for two or a special occasion. So preheat that oven, grab your favorite berries, and let the magic happen. Your kitchen—and your taste buds—will thank you.

Recipe FAQs

Can I use frozen berries instead of fresh?

Yes, frozen berries can be used directly without thawing, making preparation easier while retaining great flavor.

How do I get a crispy oat topping?

Mix cold, diced butter into the oat mixture using your fingertips until crumbly, then bake until golden brown to achieve a crisp texture.

Can I make this gluten-free?

Substitute all-purpose flour with a gluten-free blend and ensure oats are certified gluten-free for a safe alternative.

What can I add for extra crunch?

Chopped nuts such as pecans or almonds can be mixed into the oat topping to add texture and nutty flavor.

Is this suitable for small servings?

This crumble is designed for two servings, perfect for individual small-batch desserts without leftovers.

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Simple Berry Crumble Oat Topping

A comforting mix of juicy berries under a crisp, golden oat topping, ideal for a cozy small batch dessert.

Prep Time
10 minutes
Cook Time
30 minutes
Total Duration
40 minutes
Created by Lily Crawford


Skill Level Easy

Cuisine American

Makes 2 Number of Servings

Diet Preferences Vegetarian

What You'll Need

Fruit Filling

01 1.5 cups mixed berries, fresh or frozen (blueberries, raspberries, blackberries, strawberries)
02 2 tablespoons granulated sugar
03 1 teaspoon fresh lemon juice
04 1 teaspoon cornstarch

Oat Crumble Topping

01 0.25 cup rolled oats
02 0.25 cup all-purpose flour
03 3 tablespoons light brown sugar, packed
04 0.25 teaspoon ground cinnamon
05 Pinch of salt
06 2 tablespoons unsalted butter, cold and diced

How To

Step 01

Preheat Oven: Set oven to 350°F and allow to reach temperature.

Step 02

Prepare Fruit Filling: In a small mixing bowl, gently toss berries with granulated sugar, lemon juice, and cornstarch until evenly coated.

Step 03

Distribute Berries: Divide berry mixture between two 6-ounce ramekins or transfer to a single small baking dish.

Step 04

Prepare Crumble Topping: In a separate bowl, combine oats, flour, brown sugar, cinnamon, and salt. Add cold diced butter and use fingertips to work mixture until crumbly texture forms throughout.

Step 05

Apply Topping: Sprinkle oat crumble mixture evenly over berry filling.

Step 06

Bake Crumble: Bake for 25 to 30 minutes until topping achieves golden brown color and berry filling bubbles at edges.

Step 07

Cool and Serve: Remove from oven and cool for several minutes. Serve warm, optionally topped with vanilla ice cream or whipped cream.

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Tools Needed

  • Mixing bowls
  • Small baking dish or ramekins (6 ounces each)
  • Measuring spoons and cups
  • Oven

Allergy Info

Be sure to check all items for allergens. When unsure, seek medical guidance.
  • Contains milk (butter)
  • Contains wheat (flour and oats; verify gluten-free certification if needed)
  • May contain trace nuts depending on oat and flour brand; review product labels

Nutrition Info (per portion)

Nutrition data is just for reference and isn't meant to replace a healthcare professional.
  • Calories: 245
  • Fats: 8 grams
  • Carbohydrates: 41 grams
  • Proteins: 3 grams

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