Chocolate Hazelnut Crunch Cookies

Category: Sweet Treats for Any Occasion

These indulgent Chocolate Hazelnut Crunch Cookies combine the richness of chocolate chips with the nutty depth of toasted hazelnuts. The surprising addition of crushed cornflakes creates an exceptional textural contrast that elevates them beyond ordinary cookies.

The dough comes together quickly, using the classic creaming method to create a perfectly chewy interior with slightly crisp edges. The 10-12 minute bake time is crucial—you'll want to remove them when the edges are golden but the centers still look slightly underdone for that perfect soft-batch texture.

The cookies store well in an airtight container for up to 5 days, though they're at their absolute best within the first 48 hours.

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Updated on Wed, 24 Sep 2025 17:18:26 GMT
A chocolate cake with nuts on top. Save
A chocolate cake with nuts on top. | recipesbylena.com

This chocolate hazelnut crunch cookie recipe transforms basic ingredients into irresistible treats with the perfect balance of sweetness, chocolate richness, and nutty crunch. The cornflake surprise adds an unexpected texture that keeps everyone reaching for more.

These cookies have become my signature dessert for holiday gatherings. I discovered this combination when trying to use up pantry items during a snowstorm, and now my family insists I make a double batch whenever they visit.

Ingredients

  • Unsalted butter: creates a rich base and gives better control over salt content
  • Granulated sugar: provides sweetness and helps create crisp edges
  • Brown sugar: adds moisture and a subtle caramel flavor that pairs beautifully with hazelnuts
  • Large eggs: bind everything together while adding structure
  • Vanilla extract: enhances all the flavors especially the chocolate and nuts
  • All purpose flour: provides the perfect structure look for unbleached for best flavor
  • Baking soda: ensures proper rise and creates that crackly top texture
  • Salt: balances the sweetness and enhances the nutty flavors
  • Chocolate chips: use semi sweet or dark for balanced flavor that is not too sweet
  • Chopped hazelnuts: bring earthy flavor and satisfying crunch toast them first for maximum flavor
  • Crushed cornflakes: add unexpected textural contrast that makes these cookies memorable

Step-by-Step Instructions

Preheat the Oven:
Set your oven to 350°F and ensure it reaches full temperature before baking. Position racks in the center for even heat distribution. Line your baking sheets with parchment paper for easy cleanup and to prevent sticking.
Cream Butter and Sugars:
Start with room temperature butter for proper incorporation. Beat the butter with both sugars for a full 3 minutes until genuinely light and fluffy. This process incorporates air creating a tender cookie texture and the caramel notes from the brown sugar will develop during this crucial step.
Add Eggs and Vanilla:
Add eggs one at a time beating for 30 seconds between each addition. This ensures proper emulsification and prevents curdling. Add the vanilla and mix just until incorporated the fragrant vanilla complements the hazelnut beautifully.
Combine Dry Ingredients:
Whisk the flour baking soda and salt together thoroughly to ensure even distribution of leavening. Add this mixture to your wet ingredients in three portions mixing on low speed just until no dry streaks remain. Overmixing develops gluten resulting in tough cookies.
Fold in Crunchy Ingredients:
Use a rubber spatula to gently fold in the hazelnuts chocolate chips and cornflakes. This preserves the air incorporated during creaming and maintains texture. The cornflakes should be crushed but not powdered keeping some larger pieces for that signature crunch.
Scoop and Bake:
Use a cookie scoop or tablespoon to portion dough leaving 2 inches between cookies. Press down slightly but not completely flat allowing room for spread. Bake one sheet at a time for consistent results watching for golden brown edges with slightly pale centers.
Cool and Enjoy:
The cookies will appear soft when first removed this is perfect. Let them set on the hot baking sheet for exactly 5 minutes which allows carryover cooking to finish the centers while maintaining chewiness. Transfer to a wire rack to complete cooling which develops the final crisp exterior.
A chocolate dessert with nuts on top. Save
A chocolate dessert with nuts on top. | recipesbylena.com

The chocolate hazelnut combination reminds me of my grandmother's favorite European cookies. She would always claim hazelnuts were nature's perfect nut due to their rich flavor and healthy fats. Whenever I bake these, the aroma instantly transports me to her kitchen where we would dip fresh cookies in milk while they were still warm.

Make Ahead Options

These cookies actually improve in flavor after 24 hours as the ingredients meld together. The dough can be refrigerated for up to 3 days before baking, allowing you to prepare in advance and bake fresh when needed. For longer storage, portion the dough into balls, freeze on a sheet pan, then transfer to a freezer bag once solid. Bake directly from frozen, adding just 2 minutes to the baking time.

Perfect Pairings

These cookies create a divine dessert experience when served alongside specific beverages. Try them with a glass of cold milk for classic comfort, a shot of espresso to enhance the chocolate notes, or even a small glass of hazelnut liqueur for an adult treat. For an impressive dessert, sandwich vanilla ice cream between two cookies and roll the edges in additional chopped hazelnuts.

Nutty Variations

While hazelnuts create the signature flavor, this versatile recipe welcomes adaptations. Almonds offer a milder nutty profile, while walnuts bring a slight bitterness that contrasts beautifully with the sweet dough. For a tropical twist, substitute macadamia nuts and add white chocolate chips instead of semi sweet. The cornflakes can be replaced with crushed pretzels for a sweet and salty combination that many find irresistible.

Recipe FAQs

→ Can I substitute other nuts for the hazelnuts?

Yes, you can substitute walnuts, pecans, or almonds for the hazelnuts with excellent results. Just make sure to toast them first for maximum flavor. For a nut-free version, try using additional chocolate chips or add white chocolate chunks.

→ Do I really need to toast the hazelnuts?

While not absolutely necessary, toasting the hazelnuts significantly enhances their flavor and adds depth to the cookies. Simply spread them on a baking sheet and toast at 350°F for about 8-10 minutes until fragrant before chopping.

→ What can I use instead of cornflakes?

The cornflakes add a unique crunch, but you can substitute rice krispies, crushed pretzels, or even potato chips for a similar textural contrast. Each will contribute a slightly different flavor profile to your cookies.

→ Can I freeze the cookie dough?

Absolutely! Form the dough into balls and freeze them on a baking sheet, then transfer to a freezer bag for storage up to 3 months. You can bake them directly from frozen, just add 2-3 minutes to the baking time.

→ Why did my cookies spread too much?

Over-spreading usually happens when butter is too warm or there's not enough flour. Make sure your butter is softened but still cool to the touch, and measure your flour correctly. Chilling the dough for 30 minutes before baking can also help prevent spreading.

→ Can I make these cookies smaller or larger?

Yes, but you'll need to adjust baking time accordingly. Smaller cookies might only need 8-9 minutes, while larger cookies could require 13-15 minutes. Watch for golden edges and slightly underdone centers as your indicator.

Chocolate Hazelnut Crunch Cookies

Buttery cookies with toasted hazelnuts, chocolate chips, and a secret cornflake crunch for an irresistible texture explosion.

Prep Time
15 min
Cooking Time
10 min
Total Time
25 min
By: Lena

Category: Desserts

Skill Level: Easy

Cuisine Type: Western

Yield: 24 Serves (Approximately 24 cookies)

Dietary Preferences: Vegetarian

Ingredients

01 1 cup unsalted butter, softened
02 1 cup granulated sugar
03 1 cup packed brown sugar
04 2 large eggs
05 1 teaspoon vanilla extract
06 3 cups all-purpose flour
07 1 teaspoon baking soda
08 1/2 teaspoon salt
09 1 cup semi-sweet or dark chocolate chips
10 1 cup toasted, chopped hazelnuts
11 1/2 cup crushed cornflakes

Steps to Follow

Step 01

Preheat the oven to 350°F (175°C).

Step 02

Mix 1 cup unsalted butter, 1 cup granulated sugar, and 1 cup packed brown sugar until light and fluffy.

Step 03

Beat in 2 large eggs and 1 teaspoon vanilla extract until fully combined.

Step 04

Whisk together 3 cups all-purpose flour, 1 teaspoon baking soda, and 1/2 teaspoon salt. Gradually mix into the wet ingredients.

Step 05

Add 1 cup toasted, chopped hazelnuts, 1 cup semi-sweet or dark chocolate chips, and 1/2 cup crushed cornflakes. Fold gently to combine.

Step 06

Drop rounded tablespoons of dough onto a lined baking sheet. Bake for 10-12 minutes, or until edges are golden.

Step 07

Remove from the oven and cool on the baking sheet for 5 minutes. Transfer to a wire rack to cool completely.

Tools You'll Need

  • Mixing bowls
  • Whisk
  • Spatula
  • Baking sheet
  • Parchment paper or silicone baking mat
  • Wire rack

Allergen Info

Check each ingredient for potential allergens, and consult a health professional if necessary.
  • Contains nuts (hazelnuts)
  • Contains dairy (butter and chocolate chips)
  • Contains gluten (flour)
  • Contains eggs

Nutritional Information (Per Serving)

These details are for general reference only and don't replace expert medical advice.
  • Calories: 160
  • Fats: 9.1 grams
  • Carbohydrates: 18.3 grams
  • Proteins: 2.1 grams