If you crave the perfect marriage of chocolate, hazelnuts, and gooey richness, Hazelnut Nutella Cookie Bars are the ultimate indulgence. These layered dessert bars combine the comforting texture of a classic cookie with the bold, creamy intensity of Nutella and the satisfying crunch of roasted hazelnuts. Whether you’re baking for a gathering, a holiday, or simply for the joy of it, these bars promise to impress and delight every chocolate lover at the table.

  • Irresistible Gooey Layers: These bars feature a chewy cookie base layered with creamy Nutella and finished with more dough and crunchy hazelnuts.
  • Bold Chocolate-Hazelnut Flavor: The pronounced taste of roasted hazelnuts and chocolate-hazelnut spread delivers intense satisfaction in every bite.
  • Crowd-Pleasing Presentation: The marbled look of the Nutella swirled between golden cookie layers guarantees smiles at any potluck, picnic, or holiday dessert table.
  • Easy to Prepare: With simple steps and familiar pantry ingredients, these bars turn out beautifully even for less experienced bakers.
  • Flexible for All Occasions: Perfect for bake sales, birthdays, family get-togethers, or a cozy night in.

Ingredients

Gather these quality ingredients for show-stopping results:

  • Salted Butter: At room temperature, it creates rich flavor and chewy texture.
  • Brown Sugar and Granulated Sugar: Both contribute to chewy, caramelized layers and balanced sweetness.
  • Large Eggs: For structure and tenderness.
  • Pure Vanilla Extract: For classic cookie aroma and warmth.
  • All-Purpose Flour: The sturdy foundation of any bar cookie.
  • Baking Powder and Salt: To promote rise and balance flavors.
  • Nutella (Chocolate-Hazelnut Spread): The star ingredient, providing creamy richness and signature flavor.
  • Roasted Hazelnuts: Roughly chopped, for texture and an extra nutty kick.
  • Semi-Sweet or Milk Chocolate Chips (optional): For bursts of melting chocolate in every slice.

Optional Garnishes

  • Sea Salt flakes – For contrast and to heighten chocolate flavors
  • Extra chopped hazelnuts or chocolate drizzle for visual appeal

Follow this easy process for mouthwatering cookie bars, baked to golden perfection.

1. Prepare the Baking Pan

  • Line a 9×13-inch pan with parchment paper, leaving overhang for easy removal.
  • Lightly spray with nonstick baking spray for extra insurance.

2. Make the Cookie Dough

  • Cream Butter and Sugars: In the bowl of a stand mixer (or using a hand mixer), beat together softened butter, brown sugar, and granulated sugar until pale and fluffy, about 2-3 minutes.
  • Add Eggs and Vanilla: Mix in eggs one at a time, then add vanilla extract, scraping the bowl as needed.
  • Combine Dry Ingredients: In a separate bowl, whisk together all-purpose flour, baking powder, and salt. Gradually add the dry mixture to the wet, mixing just until combined for a tender crumb.

3. Layer the Dough & Nutella

  • Press in the Base: Firmly press about two-thirds of the dough evenly into the lined pan. Reserve the remaining third for later.
  • Add Nutella Layer: If your Nutella is thick, microwave gently in 10-15 second bursts until spreadable. Carefully dollop Nutella all over the cookie dough base, then gently spread into an even layer with an offset spatula or the back of a spoon.
  • Sprinkle Roasted Hazelnuts: Distribute chopped roasted hazelnuts generously atop the Nutella layer.
  • Add Chocolate Chips (Optional): Scatter a handful of chocolate chips across for extra melted goodness.
  • Top with Remaining Dough: Drop small spoonfuls of the reserved dough over the Nutella-hazelnut layer, spacing irregularly and leaving a bit of the Nutella to peek through for a rustic look.

4. Bake

  • Bake in a preheated 350°F (175°C) oven for 30-35 minutes, or until the top is golden and set around the edges.
  • The center should still look slightly moist—that’s the gooey factor.

5. Cool and Serve

  • Let bars cool completely in the pan set on a wire rack. This allows the Nutella and dough layers to firm up for neater slices.
  • For clean and distinct layers, chill the finished bars before slicing using a sharp knife.
  • Room Temperature Ingredients: Properly softened butter and eggs produce fluffier, better-mixed dough.
  • Gentle Nutella Layering: Spread the Nutella softly over the warm cookie base to avoid tearing the dough. Dolloping first, then lightly spreading, works best.
  • Don’t Overbake: Remove bars when the edges are golden and the center is just set—residual heat will finish the job, and underbaking guarantees a fudgy, chewy texture.
  • Use Quality Hazelnuts: Toasted, skinned hazelnuts provide bold aromatic flavor and the perfect crunch. Avoid stale nuts for best results.
  • Let Cool Fully: Cutting bars while hot will result in a gooey mess. Chill bars for the cleanest cuts and best presentation.

Substitutions & Creative Variations

  • No Hazelnuts? Substitute with walnuts or pecans, or omit nuts altogether for a pure chocolate experience.
  • Switch the Spread: Peanut butter, almond butter, or a chocolate spread of your choice can be used to create a different flavor profile.
  • Add a Crunchy Topping: Sprinkle the top with toffee bits, M&Ms, or mini marshmallows before baking for added fun and texture.
  • Gluten-Free: Use a 1:1 gluten-free all-purpose flour blend in place of regular flour to accommodate dietary needs.
  • Vegan Option: Substitute butter with vegan margarine, use flax eggs, and select a vegan-friendly Nutella alternative.
  • Serving Suggestions: Enjoy bars slightly warm for the ultimate gooeyness. For a dessert upgrade, serve with vanilla ice cream, a dollop of whipped cream, or a dusting of powdered sugar.
  • Short-Term Storage: Store in an airtight container at room temperature for up to 3 days. If your kitchen is warm, refrigerate to maintain texture.
  • Freezing: Cut fully cooled bars and wrap individually in plastic wrap, then place in a zip-top freezer bag. Freeze up to 2 months. Thaw at room temperature or warm for a few seconds in the microwave for best results.

Other Nutella Dessert Inspiration

  • Nutella-Stuffed Chocolate Chip Cookies: For melty pockets of Nutella in a classic chocolate chip cookie, try stuffing dough balls with frozen dollops of spread before baking. They yield soft, gooey centers and crisp edges.
  • Nutella Thumbprint Cookies: Bake cocoa cookies with a thumbprint indentation, then fill with creamy Nutella and decorate with festive sprinkles for a beautiful platter addition.
  • Simple Nutella Cookies: Mix Nutella, brown sugar, egg, and flour into a quick dough for five-ingredient, fudgy cookies that come together in minutes—no mixer needed.
  • Oatmeal-Nutella Cookie Bars: Try a version using an oatmeal cookie dough, which brings nutty depth and chewy texture (along with a healthy twist) to your bars.

Frequently Asked Questions (FAQs)

Q: What’s the best way to spread Nutella smoothly on the cookie layer?

A: Warm the Nutella slightly in the microwave until just spreadable, then gently dollop and lightly spread it over the cookie dough with an offset spatula to avoid tearing the base.

Q: Can I make Hazelnut Nutella Cookie Bars ahead of time?

A: Absolutely! These bars are wonderful made in advance. In fact, their flavor and texture often improve after resting for a day, as the layers meld together. Store tightly wrapped at room temperature or in the refrigerator.

Q: Do I have to use hazelnuts, or can I omit them?

A: Hazelnuts enhance the bar’s classic flavor, but you may replace them with other nuts like pecans or walnuts—or leave them out entirely for a nut-free dessert.

Q: Is it possible to reduce the sweetness?

A: Yes. Use bittersweet or dark chocolate chips, reduce the sugar in the dough slightly, and sprinkle sea salt flakes on top to balance sweetness.

Q: Why line the baking pan with parchment?

A: Parchment prevents sticking and makes lifting the entire bar slab out for clean slicing quick and easy.

Q: How should I cut the bars for neat pieces?

A: Cool the bars fully (chilling them if possible), then use a sharp knife wiped clean between cuts to create tidy, even pieces.

Conclusion: A New Favorite for All Occasions

Hazelnut Nutella Cookie Bars encapsulate everything we love about home baking: rich flavors, different textures, gooey centers, and endless adaptability. With a little preparation and your favorite chocolate-hazelnut spread, you can whip up a batch that will be the talk of any party, bake sale, or cozy evening at home.

More Decadent Recipes:

  • Nutella-Swirled Brownies
  • Chocolate Hazelnut Tarts
  • Fudgy Skillet Cookies
  • Nutella Babka

Ready to treat yourself? Gather your ingredients, preheat the oven, and dive into the deliciously simple luxury of Hazelnut Nutella Cookie Bars.

References

  1. https://www.thepioneerwoman.com/food-cooking/recipes/a66025085/nutella-stuffed-chocolate-chip-cookies-recipe/
  2. https://celebratingsweets.com/nutella-stuffed-oatmeal-cookie-bars/
  3. https://www.thepioneerwoman.com/food-cooking/recipes/a45896661/nutella-thumbprints-recipe/
  4. https://www.thepioneerwoman.com/food-cooking/recipes/a40710703/nutella-cookies-recipe/
  5. https://www.thepioneerwoman.com/food-cooking/recipes/a91406/hazelnut-nutella-cookie-bars/