Berry Oat Almond Crumble

Featured in: Bakes Made With Love

Enjoy the vibrant taste of juicy mixed berries blanketed by a buttery oat and almond crumble. This easy-to-bake treat features the natural sweetness of berries, a crunchy texture from oats, and a subtle nutty flavor from almonds. Perfect for warm evenings or as a delightful addition to any meal, its golden top and bubbling fruit underneath deliver a satisfying balance of tartness and rich, fragrant crumb. Serve warm with a scoop of cream or yogurt to complement the flavors and textures in every bite.

Updated on Sun, 26 Oct 2025 13:59:09 GMT
Warm Berry Oat Crumble with a sweet toasted almond topping, ready to serve. Pin It
Warm Berry Oat Crumble with a sweet toasted almond topping, ready to serve. | platefullyjoy.com

This Berry Oat Crumble is everything I want in a dessert when the lazy days of summer hit or even when I need a cozy treat in cold weather. Juicy berries bubble up beneath a nubbly blanket of toasted oats and almonds. It is the kind of recipe anyone can master and I promise it disappears just as fast as it comes out of the oven.

My first attempt at this crumble was with berries on the verge of spoiling. Now I purposely buy extra fruit just as an excuse to bake it again and again.

Ingredients

  • Mixed berries: such as blueberries raspberries or strawberries provide real fruit flavor and juiciness. Choose plump berries with bright color for best taste
  • Old fashioned rolled oats: form the crisp base of the topping. Pick thick-cut oats for a chunkier texture
  • Almond flour or finely ground almonds: add richness. Freshly ground gives a deeper nutty aroma
  • Sliced almonds: offer extra crunch and toasty notes. Toast them briefly beforehand for more fragrance
  • Maple syrup or honey: to gently sweeten both berries and topping. Pure maple gives a subtle caramel vibe
  • Butter or coconut oil: brings everything together for a crumbly topping. Use well-chilled butter for best texture
  • Lemon zest and juice: brighten the berry layer and balance sweetness. Choose organic lemons if possible
  • Cinnamon: enhances warmth. Try Ceylon cinnamon for an almost floral taste
  • Cornstarch: thickens the fruit mixture so it is not soupy. Check for freshness as old cornstarch loses thickening power

Instructions

Prepare the Berry Filling:
In a large bowl toss berries with maple syrup lemon juice lemon zest cornstarch and cinnamon. Mix well so each fruit is coated and glossy but not broken apart.
Make the Crumble Topping:
Combine oats almond flour sliced almonds and a pinch of salt in a separate bowl. Add chilled butter cut into cubes and rub together with your fingers until mixture is pebbly and shaggy. Drizzle in a bit more maple syrup if needed for clumps to form.
Assemble the Crumble:
Spread berry mixture evenly in a large baking dish making sure no dry pockets remain on sides. Distribute oat topping over fruit leaving some uneven bits so juices bubble through in the oven.
Bake to Perfection:
Place dish in a preheated oven at three hundred seventy five degrees Fahrenheit. Bake for thirty to thirty five minutes until topping is golden and fruit is thickened and bubbling up around the edges. If topping browns too quickly cover loosely with foil for last ten minutes.
Cool and Serve:
Let crumble cool slightly before serving to allow filling to set. Serve warm alone or with vanilla ice cream yogurt or whipped cream for an extra treat.
Golden and bubbly Berry Oat Crumble – a comforting dessert with a fruity filling. Pin It
Golden and bubbly Berry Oat Crumble – a comforting dessert with a fruity filling. | platefullyjoy.com

I have always adored oats but adding sliced almonds took this crumble from tasty to craveworthy. One bite of the crispy topping paired with syrupy berries and even my picky sibling went back for seconds. It is now our go to anytime we have people over.

How to Store Berry Oat Crumble

Keep leftovers wrapped or in an airtight container in the fridge. It holds up for three days and the topping stays surprisingly crisp. Warm it up in a low oven to revive the texture or enjoy cold straight from the dish. I have even frozen portions for up to a month then baked them off for a quick dessert.

Simple Ingredient Substitutions

Swap out the almonds for pumpkin seeds or sunflower seeds for a nut free crumble. To make the recipe vegan use coconut oil and pure maple syrup. If you are out of cornstarch arrowroot or tapioca starch will also get the job done for thickening the berry filling.

Serving Suggestions

Spoon directly from the dish with scoops of vanilla yogurt for a quick breakfast or pile onto bowls of ice cream for dessert. A splash of heavy cream or dollop of thick Greek yogurt makes it a wholesome snack my family loves on busy afternoons.

A Bite of History

Fruit crumbles date back to ration era Britain when limited fat and flour meant cooks made creative toppings from oats nuts or even breadcrumbs. Every cook swears by their own combination and this berry oat version picks up those comforting traditions with a nutty crunchy twist.

Seasonal Adaptations and Handy Tips

Use peaches plums or apples instead of berries in fall and winter Add fresh herbs like mint or basil to the fruit layer for summer freshness Mix and match nuts for the topping based on what you have in the pantry

Success Stories

Friends and readers tell me they started making this crumble for weeknight cravings then later brought it to brunches and holidays. My favorite report was from a friend whose two year old ate a whole bowl for dinner and asked for more.

Freezer Meal Make Ahead

Assemble all layers in a freezer safe dish cover tightly and freeze raw. Bake directly from frozen at three hundred seventy five until bubbling about forty minutes. Topping will crisp up perfectly from frozen making it easy to serve for unexpected guests or anytime you want dessert on hand.

Homemade Berry Oat Crumble showing a scoop, fresh from the oven for sharing. Pin It
Homemade Berry Oat Crumble showing a scoop, fresh from the oven for sharing. | platefullyjoy.com

This crumble is perfect as a make ahead treat or spontaneous dessert. Bring it to the table warm and watch it disappear in minutes.

Recipe FAQs

Can I use frozen berries?

Yes, frozen berries work well and can be added directly, though the bake time may increase slightly.

How can I make this crumble gluten-free?

Substitute oats with certified gluten-free oats and ensure any added flour is gluten-free.

Is almond essential for the crumble topping?

Almonds add a nutty crunch, but you can omit or replace with another favorite nut if preferred.

What is the best way to serve this dish?

Serve warm, ideally with a dollop of cream, custard, or vanilla ice cream for extra richness.

Can I prepare the crumble ahead of time?

You can assemble ahead, refrigerate, and bake just before serving for convenience and freshness.

Which berries work best for this dish?

Blueberries, blackberries, raspberries, and strawberries all pair well for a flavorful combination.

Berry Oat Almond Crumble

Mixed berries and oats combine for a golden, nutty crumble with a crisp almond finish.

Time to Prep
15 minutes
Time to Cook
35 minutes
Overall Time
50 minutes
Recipe by Olivia Reed


Skill Level Easy

Cuisine American

Makes 6 Number of Servings

Diet Info Vegetarian-Friendly, No Gluten

What You'll Need

Berry filling

01 3 cups mixed berries, fresh or thawed if frozen
02 1/3 cup granulated sugar
03 2 teaspoons cornstarch
04 1 teaspoon lemon juice

Crumble topping

01 3/4 cup old-fashioned rolled oats
02 1/2 cup almond flour
03 1/4 cup brown sugar, packed
04 1/4 cup unsalted butter, melted
05 1/4 teaspoon salt

Step-by-Step Guide

Step 01

Prepare oven and baking dish: Preheat oven to 350°F. Lightly grease an 8-inch square baking dish.

Step 02

Combine berry filling: In a large bowl, toss mixed berries with granulated sugar, cornstarch, and lemon juice until evenly coated.

Step 03

Arrange berries: Spread the berry mixture evenly in the prepared dish.

Step 04

Make crumble topping: In a separate bowl, mix rolled oats, almond flour, brown sugar, melted butter, and salt until a crumbly texture forms.

Step 05

Top berries: Evenly sprinkle the crumble mixture over berries, gently pressing down.

Step 06

Bake: Bake for 35 minutes or until topping is golden brown and berry juices are bubbling.

Step 07

Cool and serve: Let cool at least 10 minutes before serving, allowing crumble to set.

Tools You'll Need

  • Large mixing bowl
  • Medium mixing bowl
  • 8-inch square baking dish
  • Oven

Allergy Notice

Be sure to review ingredients for allergens. When unsure, talk with a healthcare provider.
  • Contains tree nuts (almonds) and dairy (butter).

Nutrition (For Each Serving)

Nutritional details are meant for general guidance. Don't rely on them for medical reasons.
  • Calorie Count: 210
  • Fats: 8 g
  • Carbohydrates: 34 g
  • Proteins: 4 g