Hazelnut Blondies

Love sweet, nutty treats? These hazelnut blondies are packed with brown sugar and toasty nuts, plus a hint of chocolate-hazelnut spread for an irresistible flavor.

The combination of hazelnuts and chocolate is one of my favorites. And it really shines in these blondies. With sweet brown sugar, plenty of toasted hazelnuts, and a bit of Nutella, there’s plenty of wonderful flavor here. And if you really want to lean into that flavor combo, a dollop of Nutella on top is absolutely divine!

Why You’ll Love This Hazelnut Blondies Recipe

• Irresistibly nutty flavor. These blondies are packed with the rich, toasty goodness of hazelnuts. The combination of crunchy hazelnuts and a hint of Nutella adds a delightful depth of flavor that’s both unique and delicious.
• Perfectly chewy texture. Each bite of these blondies offers the perfect balance of chewy and slightly crispy edges. They’re soft and gooey in the middle, making them the ultimate treat for any blondie lover.
• Easy to make. With simple ingredients and straightforward steps, this recipe is perfect for both novice and experienced bakers. You’ll have a batch of these delectable blondies ready in no time!

What You’ll Need

See the recipe card below for the full recipe, including ingredient quantities and detailed instructions.

• All-purpose flour – Measure by weight or use the spoon and sweep method. Learn more: How to Measure Flour
• Baking powder
• Salt
• Unsalted butter – Melt the butter and let it cool a bit before mixing.
• Light brown sugar – Firmly pack the brown sugar into measuring cups or (even better!) measure by weight.
• Eggs – Set these out to let them come to room temperature before mixing.
• Vanilla extract
• Hazelnuts – Toast these and then roughly chop them. (See my tips below for toasting them.)
• Chocolate-hazelnut spread – The most common brand is Nutella, but any brand should work.

How to Toast Hazelnuts

Toasting your hazelnuts gives them a more intense flavor and a delightful crunch. Spread the hazelnuts in a single layer on a rimmed baking sheet, and bake at 350°F for 10 to 15 minutes or until fragrant and toasted. If your hazelnuts have the skins intact, rub them with a towel after toasting to remove the skins.

How to Make Hazelnut Blondies

• Prepare for baking. Heat your oven to 350°F. Grease an 9-inch square pan, line with parchment paper, and grease the paper.
• Combine the dry ingredients. Whisk together the flour, baking powder, and salt.
• Combine the wet ingredients. Beat together the butter and brown sugar, and then mix in the eggs and vanilla.

• Finish mixing. Gradually mix the dry ingredients into the wet ingredients, and then stir in the hazelnuts and chocolate-hazelnut spread.
• Bake. Spread the batter evenly in the pan, and bake for 25 minutes or until a pick inserted into the center comes out clean.
• Cool. Allow the bars to cool at least 15 minutes before cutting into bars.

Variations and Serving Suggestions

• More Nutella. Add a dollop of Nutella on top of the blondies when serving.
• Chocolate chips. Add a handful of chocolate chips to the batter for extra bursts of chocolatey goodness. Dark, milk, or white chocolate chips all work well.
• Nutty mix. If you’re a fan of all things nuts, swap out half of the hazelnuts for other nuts like almonds, pecans, or walnuts to add a delightful mix of textures and flavors.
• Sea salt. Sprinkle a pinch of flaky sea salt on top of your hazelnut blondies before baking. The salty contrast enhances the sweetness and nuttiness.
• Ice cream. Dress up a warm blondie with a big scoop of vanilla or chocolate ice cream. Drizzle chocolate sauce or caramel sauce over the top and add more hazelnuts.

How to Store Hazelnut Blondies

After your hazelnut blondies have cooled, place them in an airtight container and store at room temperature up to 3 days.

Can These Blondies Be Frozen?

For longer storage, you can freeze these blondies. Wrap in two layers of plastic wrap, and then wrap again in aluminum foil or place in an airtight, freezer-safe container or resealable bag. Properly stored, they should keep in the freezer up to 3 months. Thaw for an hour or so at room temperature before serving.

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