Ultimate Nutella Swirl Brownies Recipe

The Brownie That Made Me Lick the Spatula

I will admit, in the interest of full transparency, that I have eaten a concerning amount of brownie batter while making these.

I justified it by saying it was “quality control.” My daughter was not impressed with that excuse, but she did demand her share, so the spoon was passed around.

The Nutella swirl makes these brownies feel bakery-worthy, but they’re surprisingly simple. Rich, fudgy chocolate base with hazelnut ribbons running through every slice. It’s the dessert I make when I want people to ask me for the recipe — because they always do.

Warming the Nutella (The Trick)

The key to a beautiful swirl? Warm Nutella. Not hot, just room temperature or slightly above.

Cold Nutella straight from the jar is too thick to swirl properly — you’ll just get glops that sink into the batter. Warm Nutella flows like ribbon and creates those gorgeous marbled patterns as you drag your knife through.

Twenty seconds in the microwave does the trick. You want it pourable but not hot — it’ll keep its shape beautifully when swirled.

Ultimate Nutella Swirl Brownies

Ingredients

• 1/2 cup unsalted butter
• 1 cup semi-sweet chocolate chips
• 1 cup granulated sugar
• 2 large eggs
• 1 tsp vanilla extract
• 1/3 cup cocoa powder
• 1/2 cup all-purpose flour
• 1/4 tsp salt
• 1/2 cup Nutella hazelnut spread, slightly warmed

From Bowl To Plate

Step 1: Preheat and prep. Heat the oven to 350°F and line an 8×8-inch pan with parchment paper, leaving overhang for easy lifting later.

Step 2: Melt the butter and chocolate. Combine in a small saucepan over low heat, or in the microwave in 20-second bursts. Stir until smooth and glossy. Let cool for a couple of minutes.

Step 3: Whisk in the sugar. Add the granulated sugar to the chocolate mixture and whisk until fully combined and shiny.

Step 4: Add the eggs. Whisk in the eggs one at a time, then the vanilla, until the batter looks thicker and slightly paler.

Step 5: Fold in the dry ingredients. Sift the cocoa, flour, and salt over the batter. Fold gently until just combined — don’t overmix.

Step 6: Layer and swirl. Pour two-thirds of the batter into the pan. Drop spoonfuls of warmed Nutella over the top, then spoon the remaining batter over the Nutella. Drag a knife through in a figure-eight pattern 3 to 4 times to create the swirl.

Step 7: Bake. Bake for 28 to 32 minutes, until the edges are set but the center still looks slightly soft. A toothpick should come out with a few moist crumbs. Cool completely in the pan before cutting.

Creative Twists

• Sprinkle flaky sea salt on top before baking for a sweet-salty contrast.
• Stir in 1/2 cup of chopped hazelnuts for extra crunch.
• Use chocolate-hazelnut spread with a higher cocoa content for a less sweet version.
• Add a tablespoon of espresso powder to deepen the chocolate flavor.
• Top with a dusting of cocoa powder and a drizzle of melted Nutella for an elegant finish.

Serving & Pairing Ideas

These are great slightly warm, when the Nutella is still slightly gooey and the chocolate brownie is at peak fudgy. A scoop of vanilla ice cream on top transforms them into something truly decadent.

Cold milk alongside is classic for a reason. A small glass of dessert wine like a ruby port would be beautiful for an adults-only gathering.

Ultimate Nutella Swirl Brownies

Storage & Make-Ahead Tips

Store in an airtight container at room temperature for up to 5 days. The Nutella swirl keeps these brownies extra moist, so they actually stay fudgier than regular brownies.

Freeze individual brownies wrapped in plastic wrap for up to 3 months. Thaw at room temperature for 30 minutes, or microwave for 15 seconds for that fresh-baked warmth.

The batter can be made a day ahead and stored covered in the fridge — just give it a quick stir before swirling and baking.