5 Perfect Blueberry Crumble Bar for a Sweet Treat Anytime
There is just something so comforting about a blueberry crumble bars- especially when it is fresh out of the oven and has that golden buttery crumbly topping. Or, whatever you choose, right out of the fridge, nice and cool and chewy. These bars are rich, soft and just sweet enough with juicy blueberries in every bite. They never fail to impress whether you are preparing them as a weekend brunch, a summer picnic or simply because you feel like having something nice and warm.
These Blueberry Crumble Bars have it all: they are easy, yet fulfilling and full of flavor, just what you want in a summer dessert. Bake these muffins as a treat to your loved ones or simply as a treat to yourself, either way this is a recipe that you would turn to time and again.
Table of Contents
Smart Bites: What’s Inside – Blueberry Crumble Bars
- Rich in natural antioxidants from blueberries, especially when using frozen varieties.
- Rich and buttery due to the generous amount of melted butter—this is what makes the bars so soft and buttery.
- Contains a decent amount of dietary fiber thanks to rolled oats and blueberries.
If you’re looking for something lighten the bite? Than try this blueberry crumble bars
- Rather than using or substituting sugar with coconut sugar or maple syrup..
- Use some butter mixed with coconut oil to improve the fat content a bit.
- Substitute half of the flour with almond flour or whole wheat flour.
Why You’ll Love These blueberry crumble Bars
- Easy to make with simple ingredients
- Great way to use frozen or fresh blueberries
- Perfect balance of crisp crumble and jammy fruit
- Tastes amazing chilled or warm
- Easily make for parties or any occasion events
Ingredients
For the Blueberry Filling
- 450 g frozen blueberries
- 65 sugar (adjust to taste)
- 10 g all-purpose flour (about 2 tbsp)
- 5.5 g cornstarch (about 2 tsp)
- Juice of 2/3 lemon (20–30 ml)
For the Crumble Layer
- 160 g rolled oats
- 250 g all-purpose flour
- 270 g brown sugar, loosely packed
- 2/3 tsp baking powder (about 3–4 g)
- 225 g melted salted butter
- 1/3 tsp salt (about 2 g)
Instructions
1. Prep the Blueberries:
Heat your oven to 350°F (175degC). set down the frozen blueberries in a colander and Wash them with warm water. about 1 minute. Allow to drain 1 hour or 1. Make Blueberry Filling: Wash some fresh blueberries well in running water and drain (if using frozen).In a large bowl mix blueberries, sugar, flour, cornflour, and lemon juice with the flour. Keep aside so that no lumps form.
2. Make Crumble Base:
In a bowl combine oats, flour, brown sugar, baking powder, a pinch of salt, and melted butter and blend using hands until it has a crumbly consistency. Put two-thirds (2/3) of this mixture into an 8×8 inch baking tray and set (line the tray with butter paper). Bake for 10 min in this preheated oven
3. Assemble and Bake:
Now spread the blueberry filling evenly over the crumble crust. Sprinkle the whole crumble mixture over the top.Then bake for 25-35 minutes, or until the top is lightly golden brown .Do not over brown it or it will burn so carefully with that.
4. Allow the bars to cool down:
Place them in the refrigerator, 3-4 hours, to obtain good clean pieces. In case you prefer them warm, you can consume them.
4. Let the bars cool completely:
If you want nice clean slices, keep them in the fridge for 3-4 hours. If you like them hot, you can eat them. Or enjoy them slightly warm. It will taste just like a soft fruit.
Baking Tips & Notes
Frozen & Drain is a must: If you are using frozen berries, drain the excess water, otherwise blueberry crumble bars will become soggy. And they won’t taste good. Sure! Make sure to drain the berries thoroughly then dry them with a paper towel.
If you are using fresh berries, what else is better? “Absolutely fine! But keep in mind – fresh berries have more moisture which can make the filling a little more juicy.
Want to make them in advance? Stored These blueberry crumble bars can be in the fridge for up to 7 to 8 days. Take them out whenever you feel like and enjoy a great coffee! Cold or hot – both have their own unique taste:
If you eat cold bars that are stored in the fridge it becomes chewy in the fridge if heated, they become soft and gooey. Both ways taste good!
Choose the good quality oats:
The best option is Rolled oats if you have them. If you don’t have them, their crumble becomes softer than instant oats and the texture is not as good, the rest is your choice.
Variations to Try this blueberry crumble bars
- Fresh fruits variation: Use any variation of your choice of blueberries you can use raspberries, cherries, blackberries, or mixed berries. A seasonal twist is my favorite. If you need a seasonal twist for any recipe, diced apples, peaches, or plums are great alternatives.
- Fresh citrusy taste: Zest the filling with lemon or orange and add it to the cake. These lemon-flavored cakes are really good most of the time but I could not say No to them hehe. Some lemon or orange juice or pulp can also be added to have a more tangy flavor.
- I am nuts about crunch: Chopped walnuts, almonds, or pecans can be added to the crumble topping. It is very crunchy to bite into. Roast something like nuts, should you feel.
- Add spice: Sprinkle some cinnamon, nutmeg, or cardamom into the crumble to give a good spice touch. Even the taste becomes enhanced when some vanilla extract or almond extract is incorporated into the filling. The filling can be even richer when vanilla extract or almond extract is added to it.
- Sweet Touch:
- To give a richer smoother texture, add pieces of dark chocolate or pieces of white chocolate to the blueberry crumble bars. You can add a little fruit jam to the filling to double the fruity flavor.
- Some Methods of Service:Top the Garam bars with either a scoop of vanilla ice cream or a touch of whipped cream. Use maple syrup, vanilla glaze, or honey to pour over the top and it will present the ultimate sweetening.
- Tropical Flavor: To give it some tropical flavour add some shredded coconut to the blueberry crumble bars.
- Twist in the Crust: Instead of the traditional crust, use a mix of graham cracker crumbs and butter to give it a new base.
FAQ: Blueberry Crumble Bars
Q1.Can frozen blueberries be replaced with fresh ones?
Yes, absolutely! Newer blueberries are awesome and produce juicier filling. Simply that they could add more moisture and you might have to add a little more cornstarch to counteract it.
Q2. What are the substitutes for blueberries?
There are raspberries, blackberries, cherries, and even a combination of berries. A change of season can be used for diced apples, plums, or peaches.
Q3. Can these bars be prepared beforehand?
Yes! These bars are able to have a refrigerated life of 5-7 days. All that you need to do is to keep them in an air-tight container. You can eat them cold or warm just a little and have a gooey consistency.
Q4. Is it possible to make it healthier?
Yes! Use alternative white sugar with coconut sugar for a natural sweetener. Use half butter and half coconut oil. Half of the all-purpose flour could also be exchanged for whole wheat or almond flour.
Q5. What type of oats do I use?
The most suitable oat available is rolled oats. The use of instant oats will make the crumble too soft and change the texture.
Q6. How can I avoid wet bars?
In case you are using frozen berries, do not forget to thaw them out and drain all the unnecessary liquids. Absorb pats with a paper towel. When there is excess moisture, it will render the crust mushy.
Q7. Are these bars freezable?
Yes, they can be frozen. Allow the bars to fully cool then cut them into pieces then place them in a container that can be stored in a freezer. They may take a maximum of 2 months. Defrost prior to serving.
Q8. I want to get the recipe so I can make it in quantities larger than the family on a party or potluck basis.
Definitely! Simply multiply all the ingredients by two and put them in a bigger baking dish (such as 9×13 inch). The baking process can take a little more time, check the top until it becomes golden and the berries rise.
Q9. How will it feel; chewy or soft?
Cold treatment holds the bars as chewy and firm. When they are hot they are soft and gooey, and their crumble melts in the mouth. The two are delicious!
Nutritional Amount(Per Bar)
Calories: 390–420 kcal
Carbohydrates: 60 g
Sugar: 33 g
Protein: 4 g
Total Fat: 18 g
Saturated Fat: 11 g
Fiber: 3 g
Sodium: ~ 160 mg