Are you ready to indulge in a Lemon Blueberry Crumble that’s bursting with flavor? This delightful dessert combines juicy blueberries with a zing of lemon for the perfect sweet-tart balance. I’ll walk you through each step, from selecting fresh ingredients to creating that crunchy topping. Get ready to impress your friends and family with this easy, mouthwatering recipe that’s sure to become a favorite!
Why I Love This Recipe
- Fresh and Fruity: This crumble highlights the natural sweetness of fresh blueberries, perfectly balanced with zesty lemon.
- Easy to Make: With simple steps and minimal prep time, this recipe is perfect for bakers of all levels.
- Versatile Dessert: Enjoy it warm with ice cream, or cold as a refreshing treat; it’s delicious either way!
- Healthy Twist: Using oats and minimal sugar makes this crumble a guilt-free indulgence.
Ingredients
Fresh Ingredients
– 2 cups fresh blueberries
– 1 tablespoon lemon zest
– 2 tablespoons lemon juice
Sweeteners and Thickeners
– 1/4 cup granulated sugar (adjust to taste)
– 1 tablespoon cornstarch
Crumble Topping Ingredients
– 1 cup rolled oats
– 1/2 cup all-purpose flour
– 1/4 cup brown sugar
– 1/2 teaspoon cinnamon
– 1/4 teaspoon salt
– 1/3 cup melted coconut oil or unsalted butter
Lemon blueberry crumble needs simple, fresh ingredients. First, you want great blueberries. I use 2 cups of fresh blueberries. Fresh berries give the best flavor. When you add 1 tablespoon of lemon zest, it brightens the dish. Then, squeeze in 2 tablespoons of lemon juice. This step adds a sweet, tangy taste that pairs well with the blueberries.
Next, you need some sweeteners. I recommend 1/4 cup of granulated sugar. You can adjust this to your taste. If your blueberries are very sweet, use less sugar. Add 1 tablespoon of cornstarch to help thicken the filling. This makes it nice and gooey.
For the crumble topping, you’ll mix 1 cup of rolled oats with 1/2 cup of all-purpose flour. Then add 1/4 cup of brown sugar for a rich flavor. Don’t forget to sprinkle in 1/2 teaspoon of cinnamon and 1/4 teaspoon of salt. This mix adds warmth and depth. Finally, pour in 1/3 cup of melted coconut oil or unsalted butter. This gives your crumble that crunchy texture we all love.
These ingredients work together to create a delightful dessert. Enjoy the process of assembling them!

Step-by-Step Instructions
Preparation Steps
1. First, preheat your oven to 350°F (175°C).
2. Grease an 8-inch square baking dish. Use a bit of oil or butter.
3. In a large bowl, add 2 cups of fresh blueberries.
4. Mix in 1 tablespoon of lemon zest and 2 tablespoons of lemon juice.
5. Add 1/4 cup of granulated sugar, 1 tablespoon of cornstarch, and 1 teaspoon of vanilla extract.
6. Stir gently until the blueberries are well coated.
7. Let the mixture rest for about 10 minutes.
Making the Crumble
1. In another bowl, combine 1 cup of rolled oats, 1/2 cup of all-purpose flour, 1/4 cup of brown sugar, 1/2 teaspoon of cinnamon, and 1/4 teaspoon of salt.
2. Pour in 1/3 cup of melted coconut oil or unsalted butter.
3. Mix well until the crumble is evenly combined and crumbly in texture.
Assembling and Baking
1. Pour the blueberry mixture into the prepared baking dish. Spread it evenly.
2. Evenly sprinkle the crumble mixture over the blueberries. Make sure it covers the top.
3. Bake in the preheated oven for 30-35 minutes. Look for a golden brown color and bubbling blueberries.
4. Once baked, remove it from the oven. Let it cool for a few minutes before serving.
Tips & Tricks
Baking Techniques
To ensure even baking for your crumble, spread the filling in a single layer. This helps the heat circulate evenly. Use a fork to break up the crumble topping. This creates small pieces that brown nicely. Keep an eye on your oven. Ovens can vary, so start checking for doneness at 30 minutes. Your crumble is ready when it turns golden brown and the blueberries bubble.
Flavor Enhancements
You can add spices or extracts for extra flavor. A pinch of nutmeg or a splash of almond extract can elevate your dessert. Adjust the sweetness based on the tartness of your berries. If your blueberries are very sweet, cut back on the sugar. Taste the filling before baking to find the right balance.
Presentation Recommendations
Serve your crumble warm, topped with a scoop of vanilla ice cream or a dollop of whipped cream. This adds creaminess and contrast to the dish. For a visual pop, sprinkle extra lemon zest on top. Fresh mint leaves can also add a nice touch. Feel free to get creative with your garnishes!
Pro Tips
- Adjust Sweetness: Taste the blueberry mixture before baking and adjust the sugar to your preference. Fresh blueberries can vary in sweetness, so feel free to add more or less sugar.
- Flaky Crumble: For an extra flaky crumble topping, use cold coconut oil or butter and mix with your hands instead of a spoon. This creates small pockets of fat that will melt during baking.
- Serving Warm: For the best flavor experience, serve the crumble warm right out of the oven. It pairs beautifully with vanilla ice cream or whipped cream for a delightful dessert.
- Storage Tips: If you have leftovers, store them in an airtight container in the refrigerator. To reheat, simply warm in the oven or microwave until heated through.
Variations
Fruit Alternatives
You can swap blueberries for many fruits. Raspberries, strawberries, or blackberries work great. You can even mix different fruits for a unique taste. For example, try half blueberries and half raspberries. This adds a burst of flavor and color. Each fruit brings its own sweetness and tartness.
Dietary Adjustments
If you’re gluten-free, use almond flour or oat flour. These flours work well and keep the crumble tasty. For vegan options, replace butter with coconut oil or a vegan butter. You can also use maple syrup instead of granulated sugar. These changes make the dessert friendly for more diets.
Flavor Combinations
Add nuts like almonds or walnuts for extra crunch. This gives your crumble a nice texture. You can also add seeds like chia or sunflower seeds for a health boost. If you want a twist, try adding herbs like mint or spices like ginger. These flavors can make your crumble stand out even more.
Storage Info
Refrigeration
To store leftovers, let the crumble cool down first. Place it in an airtight container. Make sure it is sealed tight. This will help keep it fresh. When refrigerated, the crumble lasts for about 3-4 days. The blueberries will remain tasty, but the crumble may soften over time.
Freezing Instructions
To freeze the crumble, let it cool completely. Cut it into individual portions for easier thawing. Wrap each piece in plastic wrap, then place them in a freezer-safe bag. This helps prevent freezer burn. You can freeze it for up to 3 months. When you are ready to eat, take it out and thaw it in the fridge overnight.
Serving from Storage
For reheating, use an oven for the best texture. Preheat the oven to 350°F (175°C). Place the crumble in a baking dish. Heat for about 15-20 minutes until warm. This keeps the topping crisp. Serve it warm for the best taste and flavor.
FAQs
How do I prevent the crumble from being soggy?
To keep your crumble crispy, follow these tips:
– Use fresh, firm blueberries. Overripe berries can add too much moisture.
– Mix cornstarch into the blueberry filling. This helps absorb extra juice.
– Bake your crumble until golden brown. This ensures the topping stays crunchy.
– Let the crumble cool slightly before serving. This allows it to set and firm up.
Can I use frozen blueberries for this recipe?
Yes, you can use frozen blueberries! Here’s how:
– Do not thaw the berries before use. This keeps them from getting mushy.
– Increase the cornstarch to 1.5 tablespoons. This helps with added moisture.
– Bake a few extra minutes, until the filling bubbles. This ensures everything cooks well.
What can I serve with Lemon Blueberry Crumble?
Pair your crumble with these ideas for a great dessert:
– Serve warm with a scoop of vanilla ice cream. The cold ice cream complements the warmth.
– Add a dollop of whipped cream for extra richness.
– Sprinkle more lemon zest on top for a fresh touch.
– Pair with a cup of tea or coffee for a cozy experience.
This blog post covered how to make a delicious lemon blueberry crumble. You learned about fresh ingredients, sweeteners, and the crust. I shared step-by-step instructions to guide your baking. Plus, there are tips for flavor and storage.
In summary, this crumble is easy to customize and enjoy. You can try different fruits and adjust sweetness. Whether you serve it warm or cold, this treat is sure to please. Happy bakin