Brown Butter Nutella Blondies

These Nutella Brown Butter Blondies are more than a simple dessert—they’re a cozy, indulgent treat. I first baked them on a rainy afternoon when I wanted something comforting, and they’ve since become a family favorite. The crackly top gives way to a soft, fudgy center studded with rich swirls of Nutella and the deep, caramel-like flavor of brown butter.

I love portable, packable treats like these blondies. They travel well for picnics, potlucks, or lunchboxes and pair beautifully with coffee or a scoop of ice cream.

Why this Nutella Brown Butter Blondies Recipe is a Keeper

Brown butter deepens the flavor with toasty, caramelized notes while Nutella adds pockets of chocolate-hazelnut richness. The result is an easy pan-baked blondie that tastes luxurious without requiring complicated steps.

• Perfect Texture: Fudgy, dense centers with slightly chewy edges and a satisfying crinkly top.
• Simple Technique: Browning butter is an easy step that dramatically boosts flavor.
• Crowd-Pleasing: Familiar Nutella flavor plus brown butter’s depth makes these vanish quickly at gatherings.
• Versatile: Serve them plain or with ice cream, whipped cream, or a sprinkle of powdered sugar.
• Pantry-Friendly: Most ingredients are common staples, making this an accessible dessert any day of the week.

Should Nutella be Dolloped in Frozen or at Room Temp (Swirled vs Stuffed)?

For neat, elegant swirls, dollop Nutella at room temperature so it spreads and ribbons easily with a knife. If you want pockets of gooey, molten Nutella inside each blondie, freeze small scoops of Nutella first and drop the frozen pieces into the batter before baking.

What Readers Are Saying… ⭐⭐⭐⭐⭐

“What a delicious combination. Nutella seems to have been created to meld with blondies! So delicious!” ~ Glenda

Ingredient Notes for the Best Blondies

Most ingredients are easy to find and many are probably already in your kitchen. A few small choices make a big difference in flavor and texture:

Get the full printable recipe with specific measurements and directions in the recipe card below.

• Butter: Brown unsalted butter until it’s foamy and fragrant with golden brown bits for the best flavor.
• Nutella: Use room-temperature Nutella for swirls or small frozen scoops for stuffed pockets.
• Brown Sugar: Light brown sugar gives a classic caramel tone; dark brown intensifies the molasses flavor.

Variations and Substitutions

Small swaps let you tailor these blondies to your preferences or dietary needs:

• Add-Ins: Stir in chopped hazelnuts, walnuts, or chocolate chunks for texture.
• Sea Salt: A light sprinkle of flaky sea salt on top brightens the flavors.
• Chocolate Chips: Milk, semi-sweet, dark, or white chips all work well.
• Gluten-Free: Substitute a 1:1 gluten-free flour blend.
• Vegan: Use plant-based butter and an egg replacer to adapt the recipe.

Special Equipment Needed

These tools make the process easier but aren’t strictly required if you improvise:

• Heavy-Bottomed Saucepan: For browning the butter evenly.
• Baking Pan: An 8×8 or 9×9 pan lined with parchment paper works best.
• Electric Mixer or Whisk: To beat the eggs and sugar until light and fluffy.

How to Make These Brown Butter Blondies

In a few straightforward steps you’ll have a pan of rich, hazelnut-swirled blondies. For exact amounts and full printable instructions, see the recipe card below.

Get the full printable recipe with specific measurements and directions in the recipe card below.

1. Preheat and Prep: Preheat the oven and butter a square baking pan. Line the bottom and two sides with parchment for easy removal.
2. Brown the Butter: Brown the butter in a saucepan over medium heat until it smells nutty and shows golden brown bits. Remove from heat and whisk in brown sugar and vanilla.
3. Make the Batter: Beat in the eggs until the mixture is light and fluffy, then fold in the dry ingredients until just combined.
4. Add Nutella and Bake: Spread the batter in the pan, dollop Nutella over the top, and swirl with a knife. Bake until the edges are golden and the center is slightly gooey. Cool completely before cutting.

Prep-Ahead Suggestions

Save time by prepping components in advance:

• Brown Butter: Brown the butter up to two days ahead and refrigerate in an airtight container. Gently rewarm before using.
• Dry Ingredients: Mix and store the dry ingredients together so they’re ready to add.
• Mise en Place: Measure ingredients into bowls for quick assembly.
• Prepare the Pan: Line the pan with parchment and leave an overhang; you can do this the day before.

How to Store, Reheat and Use Leftover Blondies

• Storing: Once completely cool, store squares in an airtight container at room temperature for 3–4 days.
• Reheating: Warm an individual blondie in the microwave for 5–15 seconds to revive the gooey center.
• Using Leftovers: Leftover blondies are great in sundaes, trifles, or bread pudding.

Common Questions About This Recipe

Expert Tips for Making Nutella Bars

• Be Patient with Brown Butter: Use medium-low heat and stir frequently. The aroma will quickly shift from melted butter to toasty and nutty.
• Cool Slightly Before Adding Eggs: Let the butter cool a little before combining with eggs so you don’t scramble them.
• Beat Eggs and Sugar Well: Whipping them until light and fluffy helps create a thin, crinkly top.
• Don’t Overmix: Mix the flour in only until just combined to keep the blondies tender and dense rather than cakey.
• Underbake Slightly: Remove when a toothpick shows moist crumbs, not wet batter; they will set as they cool.
• Cool Completely: For clean slices and the best texture, cool the pan fully before cutting—ideally a few hours or overnight.
• Use Parchment: Lining the pan with parchment overhang makes it easy to lift the slab out for neat cutting.
• Warm Nutella if Needed: If very firm, soften Nutella for a few seconds in the microwave to make dolloping and swirling easier.
• Clean Cuts: Use a sharp knife wiped clean between cuts for neat squares.