Calling all Nutella lovers! These buttery, golden Nutella Crumble Bars are ridiculously easy to make—and even harder to resist! Perfect for morning tea, snack attacks or a cheeky dessert. 🍫✨
Say hello to the most deliciously crunchy, crumbly bars filled with smooth and creamy chocolate hazelnut spread!
If you're a Nutella fan, you're going to LOVE this one!
Just like my 2 ingredient Nutella Cake, Nutella Brownies, 3 Ingredient Nutella Cookies and my no-bake Nutella cheesecake slice, these Nutella Bars are so simple to whip up and are always a hit with young and old!
Let's get baking!
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Why You’re Going to Love This Recipe
- Quick & Easy – With just 10 minutes of prep time, these bars come together effortlessly. This simple recipe is perfect for the beginner baker.
- No Mixer Required – Everything can be mixed by hand (or in a Thermomix) – no fancy equipment is needed.
- Irresistible Flavour – Buttery oat crumble paired with creamy sweet Nutella is simply the best!
- Make Ahead Friendly—These bars store beautifully in the fridge or freezer, making them a great option for prepping snacks ahead of time.
Bar Ingredients
You only need a handful of pantry staples to whip up these Nutella Bars:
Note: Scroll to the recipe card at the bottom for the ingredients quantities and full detailed method.
- Rolled oats add texture and a slight chewiness. If you prefer, you can substitute quick oats for rolled oats.
- Nutella – The star of the show! Use as much or as little chocolate hazelnut spread as you like (though more gooey Nutella is always better!).
Substitutions For The Nutella Layer
If you’d like to switch things up, there are plenty of delicious alternatives to Nutella!
- Try using peanut butter or almond butter for a nutty twist;
- Biscoff spread for a caramelized spiced flavour;
- Or a thick layer of dulce de leche for a rich and gooey treat;
- You can also use melted dark chocolate for a more intense cocoa hit or raspberry jam for a fruity contrast to the buttery crumble.
How To Make Nutella Crumble Bars
It's so easy to make these Nutella Bars, which have a chewy oat base, creamy chocolate hazelnut filling, and crunchy crumble on top!
Note: Scroll to the recipe card at the bottom for the ingredients quantities and full detailed method.
- Step 1: In a large mixing bowl, combine the flour, oats, salt, and bicarbonate of soda. Stir in both types of sugar until evenly distributed. Pour in the melted butter and vanilla extract, then mix until all ingredients are well incorporated.
- Step 2: Take just over half of the oat crumble mixture and press it firmly into the base of your prepared pan. Use the back of a spoon to smooth it out evenly. Place in the oven and bake for around 15 minutes or until lightly golden. Once baked, remove from the oven and set aside to cool slightly while keeping the oven on.
- Step 3: When the base has cooled slightly, spread the Nutella evenly over the base. If you prefer a lighter filling, use ½ cup; for a richer, more indulgent layer, go for ¾ cup.
- Step 4: Sprinkle the remaining crumble mixture evenly over the layer of Nutella. Place the tin back into the oven and bake for another 20-25 minutes or until the top is a slight golden brown.
- Allow the bars to cool completely before covering and refrigerating for at least 2 hours (overnight is even better!). Once fully set, lift the slice out of the tin and cut into squares using a sharp, serrated knife.
Expert Tips
- All ovens are different - the slice is ready when the crumble is golden. I specify degrees Celsius (fan-forced) for my recipes. If you're using a conventional oven, increase the temperature by 10-20 degrees Celsius.
- Allow the base to cool slightly before adding the Nutella (this will make it easier to spread).
- If you find that your crumble is overbrowning, simply add a sheet of foil loosely over the top and continue baking.
- Fridge - store in an airtight container for up to 1 week.
- Freezer - freeze in an airtight container for up to 3 months. Defrost in the fridge before eating.
Nutella Crumble Bar FAQs
Yes! Nutella Crumble Bars can be stored in an airtight container in the fridge for up to a week or in the freezer for up to 3 months. Allow frozen bars to thaw in the fridge before serving.
If your Nutella is a bit firm, microwave it for 10-15 seconds to soften it before spreading it over the base. This will make the process much easier!
All ovens vary slightly, but you’ll know it’s ready when the crumble topping is a lovely golden colour. If the top is browning too quickly when in the oven, loosely cover it with foil and continue baking.
Enjoy them chilled straight from the fridge at room temperature or warmed up with a scoop of ice cream, custard, or a drizzle of cream for an extra indulgent treat!
More Delicious Slice Recipes
If you love these Nutella Crumble Bars, why not try some of these other favourite slice recipes?
These Nutella Crumble Bars are sure to become a family favourite – simple to make, easy to store, and utterly delicious. Give them a go, and let me know what you think!
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Nutella Crumble Bars
Ingredients
- 185 g (1¼ cups) plain flour all-purpose
- 110 g (1¼ cups) rolled oats
- ½ teaspoon salt
- ½ teaspoon bi-carbonate of soda baking soda
- 100 g (½ cup) raw sugar
- 80 g (½ cup) brown sugar packed
- 170 g (¾ cup) butter melted
- 1 teaspoon vanilla extract
- ½-3/4 cup Nutella
Instructions
- Preheat oven to 160 degrees celsius (fan-forced).Grease and line a 20cm square cake tin with baking paper, allowing the edges to overhang.
- In a large bowl, whisk together the plain flour, rolled oats, salt and bi-carbonate of soda. Stir in the raw sugar and brown sugar and mix until smooth.
- Add the vanilla extract and melted butter to the dry ingredients. Stir mixture until well combined.If using a Thermomix: Melt the butter and vanilla extract for 3 minutes, Speed 2, 80 degrees. Add the plain flour, rolled oats, salt, bi-carbonate of soda, brown sugar and raw sugar. Mix for 20 seconds on Reverse, Speed 2. Scrape down the sides. Mix for a further 20 seconds on Reverse, Speed 2.
- Press just over half of the crumble mixture into the base of the prepared tin and use the back of a spoon to smooth the mixture into an even layer. Bake in the preheated oven for 15 minutes, until golden.Remove from oven and set aside to cool slightly (leave the oven turned on).
- Spread the Nutella over the top of the cooked base. Use ½ cup Nutella for a thin layer or ¾ cup for a slightly thicker layer (the more the better in my opinion!).
- Sprinkle the remaining crumble mixture over the top of the Nutella.
- Bake in the oven for 20 - 25 minutes or until lightly golden.Remove from oven and allow to cool.
- Cover and refrigerate for at least 2 hours (preferably overnight) then take it out and cut into squares.
Notes
- All ovens are different - the slice is ready when the crumble is golden. I specify degrees celsius (fan-forced) for my recipes. If you're using a conventional oven, increase the temperature by 10-20 degrees celsius.
- Allow the base to cool slightly before adding the Nutella (this will make it easier to spread).
- If you find that your crumble is over-browning, simply add a sheet of foil loosely over the top and continue baking.
- This crumble slice is delicious served cool or warmed up with a scoop of ice-cream, custard or cream.
- Cut the slice using a sharp serrated knife.
- Store the slice in an airtight container in the fridge for up to one week.
- Freeze the slice in an airtight container for up to 3 months. Allow to defrost in the fridge before consuming.
Lucy says
The best recipe when you're craving something sweet!