Blueberry Oat Crumble

There’s something about the smell of a freshly baked crumble that feels like a warm hug on a chilly day. It’s comforting, familiar, and reminds us that healthy eating can be joyful and deeply satisfying. If you’ve been craving a sweet treat that aligns with your wellness goals without sacrificing flavour, my Blueberry Oat Crumble is about to become your new go-to.

This recipe is simple, nourishing, and designed with busy lives in mind. Whether you want a cosy dessert to share with your family or a make-ahead snack for the week, this crumble is here to make your healthy lifestyle feel more effortless and enjoyable.

WHY YOU'LL LOVE THIS BLUEBERRY OAT CRUMBLE.

Naturally sweetened with maple syrup and banana, providing a beautiful depth of flavour while keeping added sugars low.

Uses pantry-friendly ingredients you likely already have at home.

Packed with antioxidants and fibre from blueberries and oats, supporting your energy levels and gut health.

Versatile for any season, served warm on cooler days or chilled with yoghurt on warmer mornings.

Perfect for meal prep—cut into squares and store in the fridge or freezer for a quick, nourishing snack.

LET'S TALK ABOUT THE STAR INGREDIENTS.

Blueberries: Nature’s Antioxidant Powerhouse

These tiny gems are rich in vitamins C and K, fibre, and antioxidants that support your immune system and skin health. They’re naturally sweet and add a vibrant pop of flavour to the crumble.

Rolled Oats: Heart-Healthy Goodness

Oats provide slow-releasing carbohydrates, keeping you full and energised while helping to stabilise blood sugar levels. They’re also an excellent source of fibre to support gut health.

Banana: Natural Sweetness and Binding Power

Using ripe banana in this recipe helps bind the crumble while adding natural sweetness, reducing the need for excess sweeteners.

Maple Syrup: Subtle Sweetness with Nutrients

Unlike refined sugars, maple syrup contains minerals like zinc and manganese and adds a lovely caramel-like flavour.

Arrowroot Powder: The Secret Thickener

Arrowroot helps thicken the blueberry layer without altering the flavour, ensuring your crumble holds together beautifully while keeping it gluten-free if needed.

BLUEBERRY OAT CRUMBLE.

Serves: 9
Prep time: 15 minutes
Cook time: 25 minutes

Ingredients

2 cups (300g) blueberries

¼ cup (60ml) maple syrup

1 tbsp. arrowroot powder

3 cups (250g) rolled oats

1 ripe banana, mashed

3 tbsp. water

STEP-BY-STEP INSTRUCTIONS.

1. Preheat and Prepare

Set your oven to 175°C (350°F). Line a baking pan with baking paper for easy removal and clean-up.

2. Make the Blueberry Filling

In a medium bowl, use a fork to gently mash the blueberries, releasing some of their juices while keeping texture. Add the maple syrup and arrowroot powder, stirring to combine. Set aside to allow the mixture to thicken slightly while you prepare the crumble base.

3. Prepare the Oat Mixture

Add half of the rolled oats to a food processor or blender to create oat flour. This will help bind the base while keeping the texture rustic.

In a large mixing bowl, combine the oat flour with the remaining rolled oats, mashed banana, and water. Stir until the mixture comes together.

4. Assemble the Crumble

Press ¾ of the oat mixture firmly into the prepared baking pan, creating a thin, even layer as your base.

Spread the blueberry mixture over the top, ensuring it is evenly distributed.

Crumble the remaining oat mixture on top of the blueberry layer, creating pockets of texture that will crisp beautifully during baking.

5. Bake

Bake for 20–25 minutes or until the top is golden brown and the blueberries are bubbling.

Allow to cool in the pan before slicing into squares. The crumble will firm up as it cools, making it easier to cut and serve.

PRACTICAL TIPS TO MAKE THIS RECIPE EFFORTLESS.

Use frozen blueberries: If fresh blueberries aren’t in season, frozen ones work just as well. Just thaw them beforehand.

Make it gluten-free: Swap regular rolled oats for certified gluten-free oats if needed.

Add a crunch: Sprinkle chopped nuts or seeds on top before baking for added texture.

Meal prep friendly: Store slices in an airtight container in the fridge for up to 5 days or freeze for up to 3 months for a quick snack or breakfast option.

Sweetness level: Taste your blueberries before adding maple syrup. If your berries are extra sweet, you can reduce the maple syrup slightly.

SEASONAL WAYS TO ENJOY YOUR BLUEBERRY CRUMBLE.

This crumble is versatile enough to adapt for any time of year, ensuring you always have a comforting, nourishing treat on hand.

Cool Weather:

• Serve warm with a dollop of Greek yoghurt or a splash of warm milk for a comforting dessert or breakfast.

• Enjoy with a cup of herbal tea or chai for a cosy afternoon pick-me-up.

• Add warming spices like cinnamon or nutmeg to the oat mixture for extra flavour.

Warm Weather:

• Chill slices and serve cold with a spoonful of coconut yoghurt and a drizzle of honey.

• Pair with a cold brew coffee or iced herbal tea for a refreshing snack.

• Add fresh mint on top for a burst of freshness.

HOW TO TURN THIS RECIPE INTO A NOURISHING SALAD FOR ALL SEASONS.

You might not think of a crumble when planning a salad, but with a little creativity, you can use your Blueberry Oat Crumble to build a fun, nourishing breakfast or dessert salad.

Warm Weather Crumble Salad:

• Layer baby spinach or mixed greens in a bowl.

• Add fresh berries or sliced stone fruit.

• Crumble pieces of your Blueberry Oat Crumble on top for crunch and natural sweetness.

• Drizzle with a yoghurt and lemon dressing.

Cool Weather Crumble Bowl:

• Use warm stewed fruit (apples or pears) as a base in a bowl.

• Top with warm slices of the crumble.

• Add a spoonful of Greek yoghurt and a sprinkle of cinnamon.

• Perfect as a breakfast salad on a cold morning.

WHY THIS RECIPE SUPPORTS YOUR HEALTHY LIFESTYLE.

Eating well shouldn’t mean giving up the foods you love. This Blueberry Oat Crumble offers:

Nutrient density: Whole grains, fruit, and natural sweeteners provide a balanced source of energy.

Satisfying fibre: Keeps you fuller for longer, reducing cravings.

Easy to customise: Add nuts, seeds, or different berries to suit your taste and seasonal availability.

Balanced sweetness: Just enough maple syrup and banana to satisfy your sweet tooth while being mindful of your health goals.

FINAL THOUGHTS: HEALTHY EATING, MADE ENJOYABLE.

One of my favourite things about this recipe is how versatile and family-friendly it is. You can enjoy it for breakfast, as a nourishing snack, or as a dessert that leaves you feeling satisfied rather than sluggish. It’s the perfect example of how healthy eating can be simple, joyful, and deeply satisfying.

Food should not be about restriction—it should be about finding ways to nourish your body while genuinely enjoying what you eat. This Blueberry Oat Crumble is a beautiful reminder that wellness can and should taste amazing.

READY TO MAKE YOUR BLUEBERRY OAT CRUMBLE?

If you try this recipe, I would love to hear how it turned out! Tag me on Instagram @MichelleMitchellHealthCoach or send me a message and share your creations. It always brings me joy to see these recipes come to life in your kitchens.

Looking for more wholesome, feel-good recipes like this? Head to the blog for a collection of nourishing, seasonal recipes designed to make healthy living effortless and enjoyable.

Here’s to making your health journey delicious, simple, and joyful—one crumble at a time.