• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
Lights, Camera, BAKE!
','

  • Recipes
    • Bars and Slices
    • Blondies and Brownies
    • Bread
    • Cake and Cupcake Recipes
    • Cheesecake Recipes
    • Cookies
    • Fillings and Icings
    • Frozen Desserts
    • Holidays
      • Christmas
      • Easter
      • Halloween
      • Mother's Day
      • St Patricks Day
      • Valentines Day
    • Muffins
    • No bake
    • Pies and Tarts
    • Special Diets
      • Dairy Free
      • Gluten Free
      • Paleo
  • About
  • Work With Me
  • Privacy Policy
    • Privacy Policy/Disclaimer
  • Contact
menu icon
go to homepage
  • Recipe Index
  • Christmas
  • About
  • Contact
  • Work With Me
    • Media
    • Facebook
    • Instagram
    • Pinterest
    • TikTok
    • YouTube
  • search icon
    Homepage link
    • Recipe Index
    • Christmas
    • About
    • Contact
    • Work With Me
      • Media
    • Facebook
    • Instagram
    • Pinterest
    • TikTok
    • YouTube
  • ×
    Home » Recipes » Bars and Slices

    Hazelnut Chocolate Crumble Bars

    Published: Jun 20, 2020 · Modified: Jan 11, 2025 by Emma Burton · This post may contain affiliate links · 2 Comments

    Jump to Recipe Print Recipe

    **Post and photos updated June 2020 from 2018**

    Hazelnut Chocolate Crumble Bars are a soft chocolate cookie base with a melting Nutella filling and topped with a chocolate and hazelnut crumble.

    Oozing nutella i nteh middle of a chocolate crumble slice.

    I am so excited to be sharing this recipe with you! It contains all my favourites! Chocolate, hazelnuts and Nutella! We have a soft chocolate cookie base with an ooey gooey Nutella and chocolate middle and a hazelnut, chocolate crumble topping! What more could you want from a recipe?

    Nutella filled crumble chocolate slice on a white plate.

    These hazelnut chocolate crumble bars were an absolute hit with everyone who had them. I believe they lasted all of two days before all the pieces mysteriously disappeared.

    Slice of hazelnut chocolate crumble.

    The base is based off of my chocolate cookie cheesecake bars recipe as this always results in a soft and chewy, rich and dark chocolate cookie. Exactly what want when we pair it with the sweet Nutella filling.

    Top this with a rich and crunchy hazelnut crumble and you have yourself a rich and decadent afternoon pick me up, comforting dessert or yummy sweet treat.

    Hazelnut chocolate crumble with oozing Nutella on a white plate.
    Chocolate hazelnut crunch slice on a white plate.

    I call this a sophisticated crumble slice as it is quite rich. I reduced the sugar in the cookie base and the crumble as mush as possible to make the contrast between the dark chocolate and the sweet Nutella really noticeable. This resulted in a very rich and dark dessert with the addition of Nutella. Nutella is now sophisticated! #hooray.

    How to make these bars

    • Butter and brown sugar in a white bowl.
      Place butter, brown sugar and sugar in a bowl and mix.
    • Egg and vanilla added to butter mixture in bowl.
      Add in egg and vanilla extract.
    • Wet ingredients mixed together.
      Mix together.
    • flour and cocoa in a white bowl.
      Add in cocoa, flour and baking powder and mix together.
    • Chocolate cookie dough in a white bowl.
      Mixed cookie dough.
    • Hazelnuts ready to be roasted.
      Roast the hazelnuts and then crush.
    • Dry ingredients in a white bowl.
      Add the flour, cocoa, oats and brown sugar to a bowl.
    • Dry ingredients in a white bowl.
      Add in the crushed hazelnuts and then add in melted butter and mix.
    • Nutella and chocolate chips in baking pan.
      Layer the chocolate cookie dough and then top with Nutella and chocolate chips.
    • Chocolate crumble in a baking pan.
      Top with the crumble and bake!

    Nothing beats hazelnuts and chocolate together and crumbles instantly have a comforting feel to them. These Hazelnut Chocolate Crumble Bars are for the serious Nutella and hazelnut chocolate fans out there!

    Hazelnut crumble chocolate slice with nutella in the middle.

    I hope you enjoy these Hazelnut Chocolate Crunch Bars and I truly hope you give this recipe a go and remember to rate and report back your results in the comments below. I love reading your comments! Also #lightscamerabake on Instagram for a chance to be featured and don’t forget to subscribe to my YouTube Channel for fun baking videos!

    Hazelnut chocolate crumble with oozing Nutella on a white plate.
    Print Recipe
    5 from 1 vote

    Hazelnut Chocolate Crumble Bars

    A soft chocolate cookie base with a melting Nutella filling and topped with a chocolate and hazelnut crumble. 
    Prep Time20 minutes mins
    Cook Time20 minutes mins
    Total Time40 minutes mins
    Course: Dessert, Snack
    Cuisine: American
    Servings: 16 Pieces
    Calories: 295kcal
    Author: Emma Burton

    Ingredients

    Base;

    • ½ Cup Butter, Softened (110g)
    • ½ Cup Brown Sugar (90g)
    • ¼ Cup Sugar (50g)
    • 1 Large Egg
    • 1 teaspoon Vanilla Extract
    • ¼ Cup Cocoa (24g)
    • 1 Cup All Purpose Flour (120g)
    • 1 teaspoon Baking Powder
    • ½ teaspoon Baking Soda

    Middle;

    • ¾-1 Cup Nutella (222-396g)
    • ¼ Cup Chocolate Buttons (50g)

    Crumble;

    • 1 Tbsp. Cocoa (6g)
    • 1 Cup *Roasted Hazelnuts, Crushed (70g)
    • ⅓ Cup All Purpose Flour (45g)
    • ¼ Cup Rolled Oats (22g)
    • ¼ Cup Brown Sugar (50g)
    • ⅓ Cup Butter, Melted (75g)
    Metric - US Conventional

    Instructions

    • Preheat the oven to 180°C (350°F) and line an 8"x8" baking pan with baking paper and set aside.
    • Beat the butter, brown sugar and sugar together until light and fluffy.
    • Beat in the egg and vanilla extract.
    • Beat in the cocoa, flour, baking soda and baking powder until all combined.
    • Press into the base of your prepared tin.
    • Spread over the Nutella (how much you use depends on personal taste) and sprinkle over the chocolate buttons.

    Crumble;

    • Place the cocoa, crushed hazelnuts, flour, rolled oats and brown sugar together.
    • Pour over the melted butter and mix to a crumble texture.
    • Sprinkle over the crumble and place in the oven for 20-25 minutes.

    Video

    Notes

    *To roast the hazelnuts, heat the oven to 180°C and place the hazelnuts on a tray or in a large dish and place in the oven for around 10 minutes. The smell will be nutty and the hazelnuts will be slightly darker. Remove from the oven and allow them to cool before peeling the skins off and crushing them.

    Nutrition

    Serving: 1Piece | Calories: 295kcal | Carbohydrates: 33g | Protein: 4g | Fat: 17g | Saturated Fat: 11g | Cholesterol: 37mg | Sodium: 152mg | Potassium: 160mg | Fiber: 2g | Sugar: 21g | Vitamin A: 17IU | Calcium: 55mg | Iron: 2mg
    Tried this Recipe? Tag me Today!Mention @LightsCameraBake or tag #lightscamerabake!
    Long pinterest image with three images and a title.

    More Bars and slices

    • slices of boysenberry shortcake on a pink background.
      Boysenberry Cheesecake Shortcake
    • Slices of apple shortcake on a plate.
      Apple Shortcake
    • KitKat slice on a plate.
      KitKat Cookie Bars
    • Caramilk cheesecake filled cookie bar slice on a plate.
      Caramilk Cheesecake Cookie Bars

    Reader Interactions

    Never Miss A Recipe

    * indicates required
    /* real people should not fill this in and expect good things - do not remove this or risk form bot signups */

    Intuit Mailchimp

    Comments

    1. Michele @ Queenbeebaker

      May 19, 2018 at 5:27 am

      These look amazing! I will be thinking about them for the rest of the day.

      Reply
      • Emma Burton

        May 19, 2018 at 12:59 pm

        Thanks so much! I hope you make them 🙂

        Reply

    Leave a ReplyCancel reply

    Primary Sidebar

    Girl smiling with handing pockets with purple and blue lights. Emma profile picture

    Hi! I'm Emma, the the driving force Lights, Camera, Bake!. I develop the recipes, style the food and produce the accompanying photos and videos for you at home.

    More about me →

    Christmas Recipes

    • White chocolate covered mint Oreo truffle.
      Mint Oreo Truffles
    • Chocolate Chip cookies on a white background.
      Cranberry and Chocolate Chip Cookies
    • Chocolate Yule Log is a classic Christmas recipe that takes a sponge roll cake and turns it festive! #chocolatespongeroll #yulelog #chocolateyulelog #yulelogcake #fatlessspongerecipe
      Chocolate Yule Log
    • Christmas Tree Brownies are rich and fudgy chocolate brownies decorated like Christmas trees for a fun Christmas treat. #christmas #christmasbaking #christmastreebrownies #christmasbrownies #fudgybrownies
      Christmas Tree Brownies
    • Christmas Peppermint Brownies are rich, dark chocolate, fudgy brownies, topped with a peppermint icing, a drizzle of peppermint chocolate ganache and pieces of candy canes. #christmasbrownies #christmasrecipe #christmasbaking #peppermintbrownies #christmaspeppermintbrownies #candycanebrownies
      Christmas Peppermint Brownies
    • Christmas Cookie Bars are soft and gooey spiced cookie bars with white chocolate buttons and Christmas themed M&Ms. #christmasrecipe #mandmcookies #cookiebars #mandmcookiebars #christmascookiebars
      Christmas Cookie Bars

    Never Miss A Recipe

    * indicates required
    /* real people should not fill this in and expect good things - do not remove this or risk form bot signups */

    Intuit Mailchimp

    Popular Recipes

    • Easy Date Scones chopped in half with melted butter and runny honey drizzled over the plate.
      Easy Date Scones
    • Kinder Bueno Cookie Bars are chewy and soft cookie bars packed full of Kinder chocolate, Kinder Bueno and extra chocolate and white chocolate chips! #kinderbueno #cookiebars #kinderbuenocookies #kinderbuenocookiebars #kinderbuenobrownies
      Kinder Bueno Cookie Bars
    • Two pieces of Caramilk Brownies on top of each other on a white bench.
      Caramilk Brownies
    • Condensed Milk Blondies are a twist on my VERY popular Condensed Milk Brownies recipe! This is the vanilla/caramel version of those brownies. We have an ultra fudgy and gooey blondie made from condensed milk. #condensedmilkblondies #condensedmilkbrownies #condensedmilkcookies #cookiedoughfudge #cookiefudge
      Condensed Milk Blondies
    • Condensed Milk Brownies. Super chewy, fudgy and dense chocolate brownies using condensed milk as the base. #condensedmilkdessert #condensedmilkbrownies #chewybrownies #fudgybrownies #condensedmilkfudge #qucikandeasyfudge
      Condensed Milk Brownies
    • Egg Yolk Sponge Cake is a super light and fluffy sponge relying on egg yolks as the base which delivers a rich and fluffy sponge. Filled with whipped cream and jam, dusted with icing sugar and you have a classic sponge cake for dessert, morning tea or just for fun. #eggyolkspongecake #spongecake #spongecakerecipe #easycakerecipe
      Egg Yolk Sponge Cake

    Featured on

    Delivery Rank interview logo
    Logo for Australian House & Garden
    Foodgawker logo

    Footer

    ↑ back to top

    About

    • About
    • Privacy Policy
    • Accessibility Statement

    Newsletter

    • Sign Up! for emails and updates

    Contact

    • Contact
    • Blog
    • Work With Me

    As an Amazon Associate I earn from qualifying purchases.

    Copyright © Lights, Camera, BAKE! 2024 Brunch Pro on the Feast Plugin

    Rate This Recipe

    Your vote:




    A rating is required
    A name is required
    An email is required