Simple Berry Crumble Oat

Featured in: Sweet & Spiced Treats

This delightful dish combines fresh or frozen mixed berries tossed with sugar and lemon, baked beneath a golden oat crumble made from rolled oats, brown sugar, cinnamon, and cold butter. Quick to prepare and baked to bubbling perfection, it’s ideal for an easy, cozy treat. Serve warm, optionally topped with vanilla ice cream or whipped cream for added indulgence. Perfect for small batches and easy to customize with nuts or gluten-free flour blends.

Updated on Sun, 15 Feb 2026 09:35:27 GMT
Warm berry crumble with golden oat topping, juicy mixed berries bubbling beneath a crisp, buttery crumble. Save to Pinterest
Warm berry crumble with golden oat topping, juicy mixed berries bubbling beneath a crisp, buttery crumble. | mellowspice.com

Experience the ultimate comfort in a small-batch dessert with this Simple Berry Crumble with Oat Topping. This recipe combines the vibrant, tangy sweetness of mixed berries with a satisfyingly crisp, buttery oat streusel. It's the perfect easy-to-make treat when you want something warm and homemade without a lot of fuss.

Warm berry crumble with golden oat topping, juicy mixed berries bubbling beneath a crisp, buttery crumble. Save to Pinterest
Warm berry crumble with golden oat topping, juicy mixed berries bubbling beneath a crisp, buttery crumble. | mellowspice.com

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Whether you choose blueberries, raspberries, or a medley of summer favorites, the lemon juice and a touch of cornstarch ensure the filling is perfectly thickened and bright, making every spoonful a delight.

Ingredients

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Fruit Filling
  • 1 1/2 cups mixed berries (fresh or frozen)
  • 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
Preheat the oven to 350°F (175°C).
Step 2: Prepare Filling
In a small bowl, gently toss the berries with granulated sugar, lemon juice, and cornstarch until coated.
Step 3: Portion
Divide the berry mixture between two small ramekins (about 6 oz each) or use a single small baking dish.
Step 4: Make 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: Assemble
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.

Zusatztipps für die Zubereitung

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For a crispier topping, make sure the butter is straight from the fridge and cut into very small cubes. Rubbing it in quickly prevents it from melting, which creates that classic sandy, crumbly texture rather than a dough.

Varianten und Anpassungen

Make this recipe your own by adding a tablespoon of chopped pecans or walnuts to the crumble for extra crunch. For a gluten-free version, simply substitute the all-purpose flour with a 1-to-1 gluten-free flour blend and ensure your oats are certified gluten-free.

Serviervorschläge

While delicious on its own, this crumble is elevated when served warm with a scoop of creamy vanilla ice cream or a generous dollop of freshly whipped cream.

Small batch berry crumble with cinnamon oat topping, a comforting dessert with vibrant berries and crunchy golden crust. Save to Pinterest
Small batch berry crumble with cinnamon oat topping, a comforting dessert with vibrant berries and crunchy golden crust. | mellowspice.com

Simple, sweet, and satisfying, this berry crumble is the ultimate proof that you don't need a lot of ingredients to create a memorable dessert. It's the perfect way to end a cozy meal.

Recipe FAQs

Can I use frozen berries for this dish?

Yes, frozen berries can be used directly without thawing, preserving their flavor and texture during baking.

How do I make the oat topping crisp and golden?

Use cold diced butter mixed with oats, flour, brown sugar, and cinnamon. Baking until golden brown ensures a crisp texture.

Can I add nuts to the topping?

Absolutely. Chopped pecans or almonds can be mixed into the oat topping for extra crunch and flavor.

Is there a gluten-free option for the topping?

Yes, substitute all-purpose flour with a gluten-free blend and ensure gluten-free oats for a safe alternative.

What is the best way to serve this dessert?

Serve warm, optionally with a scoop of vanilla ice cream or a dollop of whipped cream to complement the berries and oat topping.

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Simple Berry Crumble Oat

A warm dessert featuring juicy mixed berries under a crisp, golden oat crumble topping.

Prep Time
10 minutes
Cook Time
30 minutes
Overall Time
40 minutes
Created by Hannah Clarke

Recipe Category Sweet & Spiced Treats

Skill Level Easy

Cuisine American

Total Yield 2 Number of Servings

Dietary Details Vegetarian-Friendly

What You Need

Fruit Filling

01 1.5 cups mixed berries, fresh or frozen
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 packed light brown sugar
04 0.25 teaspoon ground cinnamon
05 1 pinch salt
06 2 tablespoons cold unsalted butter, diced

How To Make

Step 01

Preheat Oven: Preheat oven to 350°F

Step 02

Prepare Berry Mixture: In a small bowl, gently combine berries with granulated sugar, lemon juice, and cornstarch until evenly coated

Step 03

Distribute Filling: Divide berry mixture between two 6-ounce ramekins or place in a single small baking dish

Step 04

Make Crumble Topping: Combine oats, flour, brown sugar, cinnamon, and salt in a bowl. Add diced cold butter and work with fingertips until crumbly texture forms

Step 05

Apply Topping: Distribute oat crumble mixture evenly over berry filling

Step 06

Bake: Bake for 25 to 30 minutes until topping is golden brown and berries are bubbling at edges

Step 07

Cool and Serve: Allow to cool for several minutes before serving. Serve warm with vanilla ice cream or whipped cream if desired

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Tools Needed

  • Mixing bowls
  • Small baking dish or ramekins
  • Measuring spoons and cups
  • Oven

Allergy Details

Review all components for potential allergens and talk to your doctor with any questions.
  • Contains milk from butter
  • Contains wheat from flour and oats
  • May contain tree nuts depending on oat or flour brand; verify product labels

Nutrition Details (per serving)

This nutritional breakdown is for your information and isn't a substitute for health advice.
  • Total Calories: 245
  • Total Fat: 8 g
  • Carbohydrates: 41 g
  • Proteins: 3 g

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