Strawberry Brownies

Fresh strawberries and simple ingredients make this Strawberry Brownies recipe feel special. I love how the berry flavor complements the chocolate, and you will too. A small step makes the swirl bakery-level without strawberry cake mix or artificial strawberry flavoring, giving strawberry lovers the real deal.

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For Valentine’s Day, Mother’s Day, baby showers, or birthday parties, I love how this treat makes planning and gifting easier. You can prepare it in advance, keep it stored, or freeze it until the day, so it’s ready when you need it. It works just as well for small family dinners as it does for bigger gatherings.

Ingredients You’ll Need

You’ll need all the ingredients shown in the photograph below.

How to Make Strawberry Brownies with Step-By-Step Instructions

Scroll down for the full recipe card containing a full printable recipe and measurements in both US customary and metric units.

If you follow my simple instructions, you’ll find these brownies come together easily and taste like they took far more effort than they really did.

Prep the Oven and the Pan

Set your oven to 350°F (180°C) so it’s ready by the time the batter is done. Line a 9×9-inch baking pan with parchment paper, leaving a little overhang on the sides to make lifting the brownies out easier.

I use this square glass baking pan as it heats up and bakes evenly, and these pre-cut parchment sheets as they don’t curl up at the edges.

Prepare the Strawberries

Blend the strawberries in a blender or food processor until completely smooth. This high-powered blender makes the puree extra silky in seconds.

Strain the puree in a bowl through a fine mesh strainer to remove the seeds. This gives you a glossy, vibrant topping that’s perfect for swirling. I use this stainless steel sieve so the puree comes out smooth without any grittiness.

Once strained, set aside for later. For the bowl, I use this glass mixing bowl set with a lid, which is perfect for prepping like this.

Mix the Dry Ingredients

In a medium bowl, whisk together the flour and salt. Mixing them first makes sure the salt is distributed evenly throughout the batter. A sturdy balloon whisk like this helps blend everything quickly without clumps.

Melt the Butter and Chocolate

Place the unsalted butter and chocolate in a saucepan over low heat, stirring gently until the mixture is smooth and fully melted. Low heat helps keep the chocolate from burning or turning grainy.

I like to melt mine in this nonstick saucepan with a double spout, which heats up quickly and evenly, and makes it easy to pour liquid neatly.

Combine Wet Ingredients

Take the pan off the heat, then in a large bowl, beat the granulated sugar, brown sugar, eggs, and vanilla extract until pale and slightly frothy. This hand mixer makes this step quicker and gives a lighter texture.

Slowly pour in the melted butter and chocolate mixture, then keep whisking until everything is fully blended and glossy.

Fold in the Dry Ingredients

Add the flour mixture to the wet mixture and gently fold them together with a wooden spoon or spatula. This silicone spatula scrapes the sides clean, while this wooden spoon also works well for folding without overmixing.

Stop as soon as the flour disappears into the batter; overmixing at this stage can make brownies tough instead of fudgy.

Swirl in the Strawberry Puree

Pour the strawberry brownie batter into your parchment-lined baking pan, smoothing it out into an even layer using the spatula.

Drizzle the strawberry puree over the top, then use a knife to swirl it through the batter, creating a marbled pattern. A paring knife like this one is the perfect size for swirling without dragging too deep.

Bake and Cool

Bake for 25 to 25 minutes until the edges are set, and a toothpick inserted in the center comes out with a few moist crumbs. I keep these toothpicks on hand so I can test without leaving big holes on the brownies’ surface.

Let the brownies cool completely in the pan before slicing so the pieces hold their shape. You can also place the pan on a wire cooling rack to help them cool evenly without the bottoms getting soggy.

Slice and Serve

Use the parchment overhang to lift the entire slab out of the pan in one piece. Place it on a flat surface and slice into squares, wiping the knife between cuts for clean edges. This chef’s knife works well for smooth, even slices.

Serve as is, or add a dusting of cocoa powder or powdered sugar, or a dollop of whipped cream or strawberry frosting if you like. Enjoy!

If you’re taking these to a potluck or party, use this portable food container to prevent them from squishing. Then, slide it into an insulated casserole tote to keep them from warming up too much in summer or getting too cold in winter.

If you’re giving them as a present, a gift box with a clear window like this one makes them look polished, extra special, and ready to share.

Recipe Notes and Expert Tips

I’ve picked up a few tips along the way that help these brownies turn out their best every time.

• Use ripe strawberries: The sweeter and juicier the berries, the better the flavor and color of the puree will be.
• Thaw frozen strawberries: If using frozen, let them defrost and drain off excess liquid first so the puree blends smoothly, holds its flavor, and swirls into the batter without making it watery.
• Make a richer chocolate: This is optional, but you can stir a splash of heavy cream into the melted chocolate mixture for a silkier texture, or whip it to serve alongside the brownies.
• Fold, don’t stir: Folding the dry ingredients in gently keeps the texture soft and fudgy, and helps prevent overworking the batter, which can lead to dense brownies.
• Boost the sweetness: Swirl in spoonfuls of strawberry jam alongside the puree for a sweeter berry layer, or mix crushed freeze-dried strawberries and white chocolate chips into the batter for bursts of flavor in every bite.
• Swirl lightly: Too much swirling will blend the puree into the batter, so keep the movement light for a distinct marbled look.
• Check early: Ovens can vary, so start testing for doneness a few minutes before the minimum time to avoid overbaking.
• Cool before slicing: Letting the brownies rest makes them easier to cut neatly without tearing.

How to Store Leftovers

Store your brownies in an airtight container at room temperature for up to 2 days, or refrigerate them for up to 5 days if you prefer them chilled. I like using this glass food container to keep them fresh without absorbing fridge odors.

For longer storage, wrap each piece tightly in plastic wrap and place them in a freezer-safe bag or container, where they’ll keep for up to 3 months.

I like using this plastic wrap as it seals tightly without tearing, and these freezer bags since they’re thick and protect against freezer burn. This freezer container also works great when I want to keep layers from getting squished.

Thaw in the fridge or at room temperature before serving so the texture stays soft and fudgy.

More Easy Recipes for You to Try at Home

I’ve got plenty of other simple, delicious desserts you can make when you’re in the mood for something sweet without a lot of fuss.

• Fudgy Slutty Brownies
• Biscoff Brownies
• Lemon Brownies
• Strawberry Fudge
• Pumpkin Chocolate Bars