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This blueberry crumble has layers of plump and juicy blueberries covered with a crumbly topping and piled high with vanilla ice cream (sigh…). Can you tell I’m looking at the picture, typing this?
This is my favorite blueberry crumble because: (1) it tastes incredible (2) it’s not overly sweet; a perfect balance of sweet and sour (3) this blueberry crumble is easy to prepare! You don’t have to blanch the fruit, or peel the skin, pit, or slice as with my peach and apricot crumble (although when those stone fruits come in season, you have to try that one too; trust me!).
This crumble is done in 5 easy steps. You’ll impress your family and friends and they’ll think you spent loads of time on it; your secret is safe with me ;).
Did you know cinnamon really intensifies the flavor of blueberries? Also, lemon juice and lemon zest go really well with blueberries. I knew both so I figured they could jam together. I was on to something! This blueberry crumble will knock your socks off and you’ll be running back for more.
Ingredients for the Blueberry Crumble Filling:
2 to 2 1/4 pounds (about 36 oz) fresh blueberries, rinsed and well-drained
2 Tbsp lemon juice, freshly squeezed
1 tsp lemon zest (zest of 1 lemon)
3 Tbsp all-purpose flour
1/4 cup granulated sugar
1 tsp ground cinnamon
Ingredients for the Blueberry Crumble Topping:
1 cup all-purpose flour *measured correctly
1/4 cup granulated sugar
1/3 cup brown sugar, packed
1/8 tsp (generous pinch) of salt
8 Tbsp (1 stick) cold, unsalted butter, diced
½ cup quick-cooking oats
1 cup sliced almonds, divided
To Serve:
Vanilla ice cream or whipped cream, optional
How to Make the Best Blueberry Crumble:
1. Toss blueberries with 2 Tbsp lemon juice and 1 tsp lemon zest and set aside.
2. In a small bowl, whisk together 1/4 cup sugar, 3 Tbsp flour and 1 tsp ground cinnamon and toss with the blueberries just until evenly coated. Pour into a 9 x 13– inch baking dish.
3. In a food processor fitted with a steel blade, combine 1 cup flour, 1/4 cup granulated sugar, 1/3 cup brown sugar, and 1/8 tsp of salt. Pulse several times to combine. Add the diced cold butter and pulse until the butter is the size of peas.
4. Transfer the mixture to a bowl, add 1/2 cup oatmeal and use your hands to make large crumbles. Add ½ cup of the sliced almonds and mix to combine.
5. Spread the topping over the fruit and cover evenly, then sprinkle ½ cup of almonds over the top. Bake 40 minutes at 350˚F. The blueberries should be bubbling at the edges and the topping and almonds should be golden brown.
Here’s the hard part: let the crumble sit for at least 15 minutes before serving (it will thicken slightly as it cools). This will stay warm for a couple hours. It reheats beautifully the next day.
Blueberry Crumble Recipe

Ingredients
For the Filling:
- 2 to 2 1/4 pounds about 36 oz fresh blueberries, rinsed & well-drained
- 2 Tbsp lemon juice, freshly squeezed
- 1 tsp lemon zest, zest of 1 lemon
- 3 Tbsp all-purpose flour
- 1/4 cup granulated sugar
- 1 tsp ground cinnamon
Ingredients for the Crumble Topping:
- 1 cup all-purpose flour
- 1/4 cup granulated sugar
- 1/3 cup brown sugar, packed
- 1/8 tsp generous pinch of salt
- 8 Tbsp 1 stick cold, unsalted butter, diced
- ½ cup quick-cooking oats
- 1 cup sliced almonds, divided
To Serve:
- Vanilla ice cream or whipped cream, optional
Instructions
- Toss blueberries with 2 Tbsp lemon juice and 1 tsp lemon zest and set aside.
- In a small bowl, whisk together 1/4 cup sugar, 3 Tbsp flour and 1 tsp ground cinnamon and toss with the blueberries just until evenly coated. Pour into a 9 x 13– inch baking dish.
- In a food processor fitted with a steel blade, combine 1 cup flour, 1/4 cup granulated sugar, 1/3 cup brown sugar, and 1/8 tsp of salt. Pulse several times to combine. Add the diced cold butter and pulse until the butter is the size of peas.
- Transfer the mixture to a bowl, add 1/2 cup oatmeal and use your hands to make large crumbles. Add ½ cup of the sliced almonds and mix to combine.
- Spread the topping over the fruit and cover evenly, then sprinkle ½ cup of almonds over the top. Bake 40 minutes at 350˚F. The blueberries should be bubbling at the edges and the topping and almonds should be golden brown. Here's the hard part: let the crumble sit for at least 15 minutes before serving (it will thicken slightly as it cools). This will stay warm for a couple hours. It reheats beautifully the next day.
NOW ABOUT THAT GIVEAWAY (Giveaway Ended):
Why a giveaway? It’s a reader appreciation giveaway. I want you to know that I appreciate every one of you who visit my blog, take the time to comment, and share it with your friends and fam. You all inspire me to be a better cook and blogger. Thanks to all of you who follow my profiles on Facebook, Instagram and Twitter and for thinking I’m worth following even when I post weird things like garage sale hauls. I’m crazy about ya! And I wish I had a LeCreuset prize for each of you.
Le Creuset sponsored this giveaway. I asked them to and they said yes; how nice is that?!
You can find Le Creuset on Facebook, Instagram, Twitter and Pinterest!
Everything about Le Creuset is timeless, classic, incredible quality and beautiful. This is my first le creuset casserole dish and it’s amazing how you can tell the difference between this casserole and the one I bought at Ikea! I can see myself passing this down to the next generation. The quality is exceptional. I like holding it and when I carry it back to my buffet for storage, it feels so good in my arms. Ok, I’m totally in love with this thing! I wish I had one for each of you. It’s a 4 Qt Le Creuset covered stoneware casserole (in the color of your choice from the matte collection – subject to availability) and that lid is so convenient. No more foil over my casseroles and transporting them will be a breeze! P.S. The color of this is: Matte Collection – Cotton. It measures 11 1/2″ x 7 3/4″
The medium spatula from Le Creuset is also part of this giveaway. Here’s why I love it: (1) It’s pretty (2) It feels really good in your hand (3) it’s highly lick-able – no kidding!
Disclosure of Material Connection: I received the product(s) mentioned in some of the posts on my blog in the hope that I would give it a good review on my blog. Regardless, I ONLY recommend products or services I use personally and believe my readers will enjoy.
What an awesome recipe ! Love it !
My favorite casserole is chicken mushroom.
Awesome recipes by Natasha ! Everything that I tried was a success!
My favorite casserole is a chicken and stuffing casserole; however, another favorite is a Squash Stuffing Casserole.
I like Chili Rellenos Casserole.
My favorite is apricot crumble! I can’t wait to try yours.
This is gorgeous staff !!!!
I haven’t tried many casseroles but I make a pretty good green bean/sausage/mushroom casserole. This crumble looks so good! I’ll definitely try it out when we go blueberry picking with my kids!
My favorite casserole is one that’s been so popular on Pinterest-where you put veggies, potatoes and chicken in a dish, cover with some pats of butter and italian seasoning and bake one hour covered in foil. Always tender, delicious and so simple!
Favorite casserole is simple one with pasta, peas, fried onions on top. Sounds weird but so grub!
I dont have a favorite one yet but i am planning to make your chicken and mushroom casserole tomorrow! Its on my menu for this week:) im actually making 3 dishes from your site this week. Made pelmeni today and they were awesome! Thank you so much for all your hard work! You make our lives (moms) super easy!:)
OMgoodness, this looks divine! Pinning! My fave casserole changes frequently but right now it is my MIL’s “hamburger casserole.” Her mother gave it to her on a recipe card index she gave her for her wedding over 50 years ago so it’s a tried and trued family recipe that my hubs grew up eating and that is now one of my favorites as well! It’s got sliced potatoes on the bottom, hamburger, green beans, and thick sauce holds it together with potato chips crumbled on top. Simple goodness.
Love to win this. Need this to make chicken alfredo in the oven
My favorite casserole is a green bean casserole I pinned on Pinterest and made for thanksgiving last year.
I have many favorite casseroles. The one i do the most is a chicken and corn casserole and my favorite is a Mexican casserole!
My favorite casserole recipe is probably macaroni and cheese followed by King Ranch Chicken. Yum!
I don’t have yet(the casserole) but if I win one this sure will be our family recipe since we love blueberries with oats (Blueberry crumble) even my 11months son 🙂
I love the chicken and mushroom casserole of yours! Uses all the ingredients that I like! Cant go wrong with it!
wanted to thank you for all the great ideas and recipes you post on your blog! You make cooking so easy, and a lot of fun!
May God bless you and your wonderful family! 🙂
My favorite casserole is with potatoes and cheese!
Can’t wait to try this! I love blueberry anything!
This is an awesome giveaway! Thanks for the recipe.. looks wonderful!
I am a fan of Le Creuset brand, and love making homemade potatoes with chicken in alfredo sauce caserole…