Nutella crumble bars have a buttery and chewy oat base and is layered between sweet Nutella. They are rich in chocolate hazelnut flavour and only require 7 simple ingredients.
I love the rich, chocolate-y hazelnut goodness that is Nutella. Whether it's on a piece of bread, or layered into a dessert, it's just so delicious.
After making my Brown Butter Nutella Bars, I just knew I had to make another Nutella bar recipe soon.
The combination of Nutella and oats in these bars is what brings them to the next level. They are chewy thanks to the oats, but also gooey thanks to the Nutella.
If you're a fan of Nutella, you have to try these Nutella Crumble Bars!
For more Nutella recipes, try Nutella Brownies, Peanut Butter Nutella Cookies, and Giant Nutella Stuffed Chocolate Chip Cookie.
Why this recipe works
Crumble bars - The buttery crumble we're making is divided and used in the base and sprinkled on top.
Egg-free - No eggs in this recipe!
Easy to make - This recipe comes together in one bowl with simple, pantry ingredients.
Nutella - Gooey chocolate hazelnut goodness that is Nutella itself! Layered in between the bars.
Oats - The oats in these bars gives a nice chew to them that pairs great with the sweet Nutella.
Ingredients Notes
Scroll to view a few ingredients notes. Full recipe and measurements can be found in the recipe card below.
Butter – Unsalted works best for baking. This will be melted.
Brown sugar – I used light brown sugar, but dark brown works as well.
Nutella – I did use the Nutella brand, but any chocolate hazelnut spread should work the same as long as it is the same consistency.
Oats - Large flake oats (also called rolled oats) must be used! Quick oats have not been tested therefore I can't guarantee results.
Step by step instructions
Here is how to make and bake these Nutella crumble bars. You will need an 8×8 square pan lined with parchment paper, a large mixing bowl, a spatula, and a whisk.
Step 1 – Preheat the oven to 350°F/175°C and line and grease an 8×8 inch square pan.
Step 2 – Mix ingredients. In a large bowl, add the melted butter, brown sugar, vanilla, oats, baking powder, salt, and flour and mix until combined.
Step 3 - Layer the bars. Place ¾ of the oat crumble mixture into your prepared pan and press down firmly. Make sure there are no crumbs remaining, this must be very firm.
Step 4 - Spread Nutella. Scoop Nutella onto the prepared base and spread it gently making sure not to disturb the base. Top off with remaining crumble.
Step 5 - Bake. Bake for about 25-32 minutes or until golden brown edges and then allow to cool completely. If you slice while the bars are still warm, they'll be a warm (but delicious) crumble mess.
Expert Baking Tips
- For smooth cut Nutella bars, chill the bars for a few hours in the fridge before slicing.
- Don't spread the Nutella to the very edges or else it'll burn. Leave about 2cm around the edges all around.
- When making the base, remember to press down firmly. This will help to prevent any breaking of the base when later slicing.
- Add more or less Nutella depending on your chocolate craving...I usually go with more because why not!?
- Take these bars to the next level by browning the butter.
FAQ
Can I use gluten-free flour and oats?
Yes! Use a 1:1 ratio for both.
My bars are falling apart!?
Are they still warm? Did you pull them out of the oven to early? Did you press the base down extra firmly before layering? These are all reasons that could make your crumble...well crumble!
Can I use quick oats?
No. You have to use rolled oats (also known as large flake in some cases).
Storing & Freezing
Not that these bars ever last more than a day in my house, but if you want to store them here's how!
Store for up to 5 days in an airtight container or ziplock bag in the fridge.
To freeze, slice and place in an ziplock bag. I like to put parchment paper in between each slice to make sure they don't stick together. Allow to thaw back to room temperature before serving.
Personally, my favourite way to eat these bars is warm with a scoop of vanilla ice cream, so feel free to warm the bars up in the microwave as well!
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Nutella Crumble Bars
Ingredients
- 1 cup butter melted
- 3/4 cups brown sugar
- 1 tbsp vanilla
- 1 1/2 cups all-purpose flour
- 1 1/2 cups rolled oats
- 1/2 tsp salt
- 1/2 tsp baking powder
- 2/3 cups Nutella
Instructions
- Preheat oven to 350°F and line 2 sides of an 8×8 pan with parchment paper. Spray the other two sides with oil. Set aside.
- In a large bowl, add melted butter, brown sugar, vanilla, flour, rolled oats, salt, and baking powder. Mix until a soft dough forms.1 cup butter, 3/4 cups brown sugar, 1 tbsp vanilla, 1 1/2 cups all-purpose flour, 1 1/2 cups rolled oats, 1/2 tsp salt, 1/2 tsp baking powder
- Into your prepared pan, add 3/4's of the dough. Press down firmly into the bottom of your pan.
- Scoop Nutella onto the base and spread into an even layer. Make sure there is about a 1-2 cm edge all around. This helps ensure your Nutella does not burn on the edges while baking.2/3 cups Nutella
- Sprinkle the remainder crumble on top of the bars. It's ok if some Nutella is showing through.
- Bake for 25-32 minutes. Mine took 32 minutes exactly. The bars will be a slight golden brown on the edge, that's when you know it's ready.
- Remove from oven and allow to come to a complete cool before slicing. This will ensure that the bars won't slice messy. Speed up this process by placing them i the fridge.
- Slice cooled bars and enjoy! Store on your countertop for a day, or in the fridge in an airtight container or bag for up to 5 days.
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