My mom perpetually stocks her fridge with fresh blueberries. Many mornings, she pours herself a small bowl of cereal, usually something containing bran flakes and granola clusters with some slivered almonds as well, and she drops in a handful of those blueberries after pouring in her vanilla almond milk.
Have you ever added fresh fruit to a bowl of cereal? When you get a bite with everything—that soft, sweet, juicy burst paired with the slightly crisp flakes or crunchy granola clusters and the cold liquid from the milk—oh my yummm. It’s worth rolling out of bed for, every single time!
When the temperatures started rising here in California earlier this month, Mom also began fixing herself one of her favorite summertime treats in the evenings with that same fruit: berries athenaeum. It’s one of the dessert options on the menu at the Athenaeum, a club-style restaurant owned by the college in southern California where she completed her undergraduate degree, and it’s very simple and straightforward.
Add vanilla bean ice cream to a bowl, top with fresh berries, and, if desired, drizzle that with a little Grand Marnier and finish with a cookie, traditionally a classic hazelnut pirouline.
Mom generally sticks to the ice cream and berries… And after bringing a coworker to the Athenaeum a few years ago for dinner during one of their business trips to the college, that sweet lady started making berries athenaeum at home too!
So when I gave Mom and Dad this Ultimate Healthy Blueberry Crumble last Friday, she topped her first slice with vanilla ice cream, just like with her favorite easy dessert. And by the end of the weekend, every last crumb had disappeared from the pan!
But since the crumble contained no refined flour or sugar… And a full serving of fruit in every slice… And just 127 calories… My parents didn’t feel guilty about that at all!
To make this healthy crumble, you’ll start with the topping. It’s super simple! Just whole wheat flour, old-fashioned oats, and cinnamon held together with a little sweetener and melted butter. Yes, melted butter! Traditional recipes require you to cut cold, cubed butter into that mixture, but… That takes more effort. (And makes my muslces tired, especially if I already finished an arm workout earlier in the day! 😉 ) It’s much easier to stir in melted butter, so we’re doing that instead!
As for the sweetener, you’ll use pure maple syrup instead of granulated or brown sugar. Be sure to use the real kind! Avoid pancake syrup; that can behave differently in baking recipes. The only ingredient on the label should be “pure maple syrup.” It’s generally sold in thin glass bottles or squat plastic jugs, like this.
For the fruit, both fresh and frozen blueberries will work! This means that it’s completely possible to enjoy this crumble all year round… Which makes me one very happy girl. Fruit crumbles are one of my favorite desserts because they’re basically healthy enough for breakfast! Lots of fruit + “granola” topping made of wholesome ingredients = breakfast food, right?? (Just say yes!)
Because the blueberries release lots of juice while baking, you’ll mix them with cornstarch before adding them to the pan. The cornstarch thickens those juices, especially while the crumble cools, so it’s very important to let the crumble cool completely to room temperature before serving so the cornstarch can do its thing. If you prefer eating your crumble warm, I still highly recommend letting it cool completely, then reheating individual portions!
And topped with a little vanilla ice cream… Or, umm, how about vanilla frozen Greek yogurt for breakfast?…
Pure bliss. And when you bake this, remember to snap a picture and share it on Instagram using #amyshealthybaking and tagging @amyshealthybaking IN the photo itself! (That guarantees that I’ll see your picture! 🙂 ) I’d love to see your healthy blueberry crumble!
The Ultimate Healthy Blueberry Crumble
- ¾ cup (75g) old-fashioned oats (gluten free if necessary and measured like this)
- ¼ cup (30g) whole wheat flour or millet* flour (measured like this)
- 1 tsp ground cinnamon
- 2 tbsp (30mL) pure maple syrup, room temperature
- 1 ½ tbsp (21g) unsalted butter, melted
- 6 cups (840g) blueberries (see Notes!)
- 3 tbsp (24g) cornstarch
- Preheat the oven to 350°F, and coat an 8”-square pan with nonstick cooking spray.
- To prepare the topping, whisk together the oats, flour, and cinnamon in a small bowl. Make a well in the center. Pour in the maple syrup and melted butter. Stir until fully incorporated.
- To prepare the filling, toss the blueberries with the cornstarch in a large bowl until completely coated.
- Transfer the filling to the prepared pan, and sprinkle evenly with the topping. (The topping tends to clump, so break it up into really small pieces!) Bake at 350°F for 45-55 minutes or until the juice is bubbling at the sides of the pan. Cool completely to room temperature; then refrigerate for at least 3 hours before serving to allow the juices to fully thicken.
View Nutrition Information + Weight Watchers Points
You may also like Amy’s other recipes…
♡ Healthy Blueberry Almond Crumble
♡ Healthy Peach Crumble
♡ Healthy Almond Berry Crumble
♡ Healthy Strawberry Poppy Seed Crumble
♡ Healthy Blueberry Mango Crumble
♡ Healthy Blueberry Breakfast Crumbles
I just made this and it’s in my oven right now! Can’t wait to try it, it looks Delish! I didn’t have enough frozen blueberries so I used frozen strawberries too. I love how healthy and clean this recipe is, thank you so much for posting it !
It’s my pleasure! I’m honored that you’d want to try my recipe, and I really hope you enjoyed your crumble! 🙂 I love your idea of mixing strawberries and blueberries. I need to remember to try that sometime too!
Does this freeze well?
I’m honored that you’d like to try my recipe, Sharon! I haven’t tried freezing this blueberry crumble, so I’m not sure and don’t want to lead you astray. I’d love to hear what you think if you decide to try making it!
MARYANN MATTEO says...
I made your recipe, but the oatmeal topping was too hard. So, I mixed it all together with the blueberries; and it was delicious. Perhaps I won’t bake it as long the next time. But, it will definitely be a permanent recipe in my kitchen!
I’m so glad you enjoyed this crumble! It means a lot that you think it’ll be a permanent recipe in your kitchen. That’s the best kind of compliment there is — thank you for taking the time to let me know! 🙂
I have a horrible sweet tooth and can’t break a habit of dessert after dinner. This has been a delicious and healthy alternative to scratch that itch. Thank you,
I’m so glad you enjoyed this blueberry crumble, Sarah! It means a lot that you’d take the time to let me know. (And I know that feeling and that itch all too well! 😉 )
I would like to serve this in individual ramekins. How would that affect the baking time? Thank you!!
If you use nine 1-cup ramekins, then I’d recommend checking on them after about 25-30 minutes. They may take a bit longer to finish, but it’s easier to put the ramekins back in the oven than save burnt crumble! 😉 Just like with the full-sized crumble, they’ll be done when the juice is bubbling around the sides of the ramekins and the streusel topping feels really firm. If you’re using frozen blueberries, the ramekins may take slightly longer as well.
I’d love to hear how your individual blueberry crumbles turn out if you try that, Sharon!
I halved the recipe and put them in 4 ramekins for breakfast. Topped with a vanilla yogurt. So good! Added a little extra crumble too 🙂
I’m so glad you enjoyed them, Amy! Thank you for taking the time to let me know — and for sharing your recipe modifications as well. I always love hearing what tweaks work! (I wouldn’t turn down a little extra crumble either! 😉 )
I LOVE this recipe!!
My hubby is diabetic and this is perfect. When my blueberry crop waned my peaches ripened. So I looked for a diabetic recipe for crisp or crumble for peaches. I became so frustrated with the high sugar content. 😣 I came back to this recipe and just used peaches instead of blueberries!! Worked GREAT!
It means so much that you and your hubby loved this crumble, Lynn! Thank you for taking the time to let me know. Hearing that made my day! 🙂 I’m sure your homegrown fruit made your crumble taste even better. I wish I had a green thumb, but mine often seems to be a bit more brownish-black! 😉
Fantastic! Just enough sweetness to satisfy my sweet tooth, perfect all around! I had gone blueberry picking and was looking for something delicious without sugar and this worked great 😊
I’m so glad you loved this blueberry crumble, Carina! Thank you for taking the time to let me know — it really means a lot! 🙂
Ok I recently found your website and find it quite delightful. I’m an adventurous cook and baker. I made this recipe today in fact because there was a sale at the local giant that offered two pints of blueberries free for purchasing just one pint I found myself making a double batch. I think it turned out perfectly and I hope there’s some way I can upload a picture here.
You’re so sweet to share your photo of your blueberry crumble on Instagram, Pat! Seeing your picture and reading your incredibly kind words made my day. Thank you for taking the time to let me know — it truly means a lot!! (And I wish my grocery store offered a sale like that too… Buy one, get two free for pints of blueberries sounds amazing!)
Janene Babbitt says...
Out of curiosity, why can we not use coconut flour?
Coconut flour behaves much differently than any other flour! It’s about three times as absorbent, so it really dries out the topping and prevents it from binding together. If you decide to try making this blueberry crumble, I’d love to hear what you think of it, Janene! 🙂
This is so delicious! I had so many blueberries frozen from last season that were use or throw. This dessert was a perfect use for them. My husband is pre-diabetic and is addicted to sweets, so this was absolutely perfect. I can’t wait to try other fruits with this recipe. Definitely a keeper. Thanks so much!
I’m so glad you enjoyed this blueberry crumble, Michelle! It means so much that you’d call this recipe a keeper. That’s the best kind of compliment there is — thank you for taking the time to let me know! 🙂 Your husband is truly lucky to have you too. You’re really thoughtful to make him treats that work for his dietary needs!
PS If it’s helpful, I have a few other crumble recipes with similar ingredients to this one. You can find all of those here!