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If you’ve ever dreamed of cookies that bring together the intense richness of chocolate and the nutty crunch of hazelnuts, you’re in for a real treat with this Double Chocolate Cookies with Hazelnuts Recipe. These cookies are a heavenly blend of deep cocoa flavor enhanced by the robust addition of strong coffee and finished with irresistible bursts of dark chocolate chips and toasted hazelnuts. Whether you need a quick mood booster or a crowd-pleasing dessert, this recipe will quickly become your go-to because it strikes the perfect balance between gooey, chewy, and crunchy, all in every single bite.

Ingredients You’ll Need
Let’s talk ingredients, because the magic happens here. Each component is simple yet essential, crafting the perfect cookie texture, rich flavor, and that lovely hint of nuttiness which makes this recipe stand out. From the cocoa powder that gives the cookies their deep chocolate tone to the chopped hazelnuts adding a delightful crunch, every ingredient plays a starring role.
- 2 cups flour: The sturdy base that holds our cookie together with just the right chewiness.
- 1/2 cup unsweetened cocoa powder: For intense chocolate flavor and that irresistible dark hue.
- 1/2 teaspoon baking soda: Because we want our cookies to rise just enough.
- 1 1/2 teaspoons cornstarch: Adds tenderness to keep these babies soft yet structured.
- 1/2 teaspoon salt: Balances sweetness and lifts all chocolate notes beautifully.
- 3/4 cup butter (melted halfway): The key to rich moisture and mouthwatering texture.
- 3/4 cup brown sugar: For deep caramel notes and soft chewiness.
- 3/4 cup white sugar: Adds necessary sweetness and helps with cookie spread.
- 1 large egg: Provides structure and richness.
- 1 egg yolk: Makes the cookies extra tender and rich.
- 2 tablespoons strong coffee: Enhances the chocolate flavor with a subtle depth.
- 1/2 cup dark chocolate chips: Melts into gooey pockets of pure bliss.
- 1/2 cup hazelnuts (roughly chopped): Adds that satisfying crunch and nutty flavor contrast.
How to Make Double Chocolate Cookies with Hazelnuts Recipe
Step 1: Prepare Your Dry Mix
Start by sifting together the flour, cocoa powder, baking soda, cornstarch, and salt. Sifting ensures these ingredients blend evenly and eliminates any lumps, giving your cookies a smooth, consistent texture that’s crucial for the perfect bite.
Step 2: Cream Butter and Sugars
In a separate bowl, cream the butter with both brown and white sugar until the sugar begins to dissolve and everything turns light and fluffy. This step is essential because it introduces air, helping your cookies achieve that delicate crumb rather than being too dense.
Step 3: Add Eggs and Coffee
Beat in the whole egg and egg yolk, which add richness and tenderness, then stir in the strong coffee. The coffee is a little secret weapon here—it intensifies the chocolate flavor without leaving a strong coffee taste behind, creating a deeper, more complex profile.
Step 4: Combine Wet and Dry Ingredients
Mix your wet ingredients gently into the dry mix until just combined, making sure not to overwork the dough. Then fold in the dark chocolate chips and chopped hazelnuts, which will give your cookies fantastic richness and crunch in every bite.
Step 5: Chill the Dough
Wrap the cookie dough tightly in plastic and refrigerate for at least two hours or up to three days. This chilling period helps the flavors meld and prevents the cookies from spreading too much during baking, resulting in a thicker, chewier texture.
Step 6: Preheat and Prepare Baking Sheets
When you’re ready to bake, preheat your oven to 325°F and line several baking trays with parchment paper. This preparation ensures easy cleanup and helps your cookies bake evenly without sticking.
Step 7: Shape Your Cookies
Take the dough out of the fridge and allow it to soften just for about 5 to 10 minutes. Then use an ice cream scoop to portion out dough balls of roughly 2 to 3 tablespoons each. This method keeps each cookie uniform in size, baking evenly and looking beautiful.
Step 8: Bake and Cool
Arrange the dough balls on your baking sheets with enough space between them—about 8 to 10 per tray—to allow for spreading. Bake for 10 to 12 minutes, then remove from the oven and let the cookies rest on the tray for 10 minutes before transferring them to a wire rack to cool completely. This resting period lets them set perfectly without becoming crumbly.
Step 9: Store Your Cookies Properly
Once cooled, keep these cookies fresh by storing them in an airtight container at room temperature. They’ll stay deliciously soft for up to a week, ready whenever you need a chocolatey pick-me-up.
How to Serve Double Chocolate Cookies with Hazelnuts Recipe

Garnishes
For an extra special touch, sprinkle a few flaky sea salt crystals over the cookies just before serving to heighten the rich chocolate and nutty flavors. You can also dust them lightly with powdered sugar for a charming, bakery-style presentation.
Side Dishes
These Double Chocolate Cookies with Hazelnuts Recipe go perfectly alongside a tall glass of cold milk or a cup of freshly brewed coffee, which complements their strong coffee essence. For a dessert party, serve with vanilla ice cream or whipped cream to create a decadent contrast.
Creative Ways to Present
Consider assembling a cookie platter with a variety of chocolates, nuts, and fresh berries. You can also sandwich two cookies together with hazelnut spread for a fun twist. Wrapping them individually in wax paper tied with twine makes a delightful homemade gift too.
Make Ahead and Storage
Storing Leftovers
If you find yourself with leftover cookies, the best way to keep their texture is to place them in an airtight container at room temperature. Adding a slice of bread to the container can help maintain moisture, keeping cookies fresh and soft for days.
Freezing
This Double Chocolate Cookies with Hazelnuts Recipe also freezes beautifully. Either freeze dough balls before baking, wrapped tightly in plastic and stored in a freezer bag, or freeze baked cookies in a sealed container. Both methods make it easy to enjoy fresh cookies anytime.
Reheating
To revive frozen or stored cookies, gently warm them in the oven at 300°F for 5 to 7 minutes or microwave for about 15 seconds. This brings back the gooey melted-chocolate sensation that makes these cookies so addictively good.
FAQs
Can I substitute hazelnuts with another nut?
Absolutely! Walnuts or pecans work wonderfully and provide a slightly different but equally delicious texture and flavor. Just make sure to roughly chop them to keep that satisfying crunch.
Why is coffee included in the recipe?
The coffee doesn’t make the cookies taste like coffee but rather enhances and intensifies the chocolate flavor, making it richer and more complex. It’s a subtle but game-changing addition.
How do I prevent the cookies from spreading too much?
Chilling the dough for at least two hours before baking is key to controlling spread. Also, using the right proportion of flour and chilling the portioned dough balls helps keep the cookies thick and chewy.
Can I make these cookies vegan?
While this recipe uses butter, eggs, and egg yolk, you can experiment with vegan substitutes such as plant-based butter and flax eggs. However, the texture and flavor may vary slightly from the original.
How long do these cookies stay fresh?
Stored in an airtight container at room temperature, these cookies remain fresh and chewy for up to a week. Keeping them away from humidity is essential to maintain their perfect texture.
Final Thoughts
I truly hope you give this Double Chocolate Cookies with Hazelnuts Recipe a whirl because it’s one of those desserts that feels like a warm hug in cookie form. Rich, chocolatey, nutty, and utterly comforting, these cookies are bound to become a beloved staple for cozy evenings or celebrations. Get baking and enjoy every bite of this deliciously addictive treat!
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Print
Double Chocolate Cookies with Hazelnuts Recipe
- Prep Time: 30 minutes
- Cook Time: 10 minutes
- Total Time: 40 minutes (plus refrigeration time of at least 2 hours)
- Yield: 20 cookies
- Category: Dessert, Cookies
- Method: Baking
- Cuisine: American
Description
Delicious double chocolate cookies with chopped hazelnuts, featuring a rich cocoa base and bursts of dark chocolate chips. These cookies are perfectly soft with a slight crisp edge and have a hint of coffee to enhance the chocolate flavor. Ideal as a decadent treat or dessert, these cookies are easy to prepare and bake.
Ingredients
Dry Ingredients
- 2 cups flour
- 1/2 cup unsweetened cocoa powder
- 1/2 teaspoon baking soda
- 1 1/2 teaspoons cornstarch
- 1/2 teaspoon salt
Wet Ingredients
- 3/4 cup butter (melted about halfway)
- 3/4 cup brown sugar
- 3/4 cup white sugar
- 1 large egg
- 1 egg yolk
- 2 tablespoons strong coffee
Add-ins
- 1/2 cup dark chocolate chips
- 1/2 cup hazelnuts (roughly chopped)
Instructions
- Prepare Dry Ingredients: Sift together the flour, cocoa powder, baking soda, cornstarch, and salt in a large bowl to ensure even distribution and remove any lumps.
- Cream Butter and Sugars: In a separate bowl, cream the melted butter with the brown sugar and white sugar for about 5 minutes until the mixture starts to dissolve and becomes slightly smooth. Then, add the egg and egg yolk, beating until the mixture lightens in color. Stir in the strong coffee to enhance the chocolate flavor.
- Combine Wet and Dry Ingredients: Gradually add the wet mixture into the dry ingredients and mix until just combined. Fold in the dark chocolate chips and chopped hazelnuts evenly throughout the dough. Wrap the dough in plastic wrap and refrigerate for at least two hours, or up to three days for best flavor and texture.
- Preheat Oven: When ready to bake, preheat your oven to 325°F (165°C) and line baking trays with parchment paper to prevent sticking.
- Shape Cookies: Allow the chilled dough to soften slightly for 5 to 10 minutes. Using a cookie scoop or tablespoon, form balls of dough approximately 2-3 tablespoons each, which helps ensure uniform cookie sizes.
- Arrange Dough on Trays: Place the dough balls on the prepared baking sheets, leaving sufficient space between them as the cookies will spread during baking. You can fit around 8 to 10 cookies per tray.
- Bake and Cool: Bake the cookies in the preheated oven for 10 to 12 minutes until set. Remove from the oven and let them rest on the baking tray for 10 minutes to firm up before transferring to a wire rack to cool completely.
- Store Properly: Once cooled, store the cookies in an airtight container to keep them fresh for up to one week.
Notes
- Using strong coffee is optional but enhances the chocolate flavor remarkably.
- Refrigerating the dough helps develop the flavors and prevents excessive spreading during baking.
- If you prefer a crunchier texture, bake a minute or two longer but watch carefully to avoid overbaking.
- Hazelnuts can be substituted with walnuts or pecans if desired.
- For a gluten-free version, substitute the flour with a gluten-free flour blend.

