Marble Blondies

Cant decide between blondies and brownies?

Make these marble blondies instead.

If you cant decide between blondies and brownies, then this recipe is the answer.

Stack of slices of marble brownies on a piece of parchment paper, and on the counter surrounding the stack, a carafe of milk and more slices of the brownies

Simply Recipes / Mark Beahm

The extra egg yolk helps provide more fat to balance out the dry cocoa.

Dutch-process cocoa provides deep color and rich flavor while the melted chocolate yields a fudgy texture.

When baked together, the batters meld and yield a treat thats truly marvelous.

Close-up of one of the marble brownie slices, which is surrounded by more slices of marble brownies, all on a parchment paper lined baking sheet

Simply Recipes / Mark Beahm

Consider these the twist of blondies.

The eye-catching marbled appearance will have people thinking you spent hours creating those playful swirls.

Heres everything you’re gonna wanna know to create the most stunning marbled effect.

Close-up of a slice of marble brownie missing a bite surrounded by more, unbitten slices, all on a plate

Simply Recipes / Mark Beahm

Easy Variations

Want a little extra pizzazz?

Consider this:

How to Store Marble Blondies

These blondies are best the day of baking.

Leftover blondies can be stored in an airtight container at room temperature for up to 4 days.

Stack of slices of marble brownies on a piece of parchment paper, and on the counter surrounding the stack, a carafe of milk and more slices of the brownies

Simply Recipes / Mark Beahm

Thaw at room temperature.

Lightly spray the pan once more, greasing the parchment and sides.

In the prepared square baking pan, marble the batters.

Parchment paper lined and sprayed square baking pan for marble brownies recipe

Simply Recipes / Mark Beahm

The layer of batter should loosely resemble a checkerboard.

Repeat leveling out the batters with an offset spatula/spoon and your fingertips.

Carefully and thoughtfully use quick motions to drag and swirl the top layer of batters into one another.

Bowl of wet ingredients whisked together for marble brownies recipe

Simply Recipes / Mark Beahm

Simple Tip!

I find it easier to drag the brownie batter through the blondie batter versus the other way around.

There will be some texture on the surface from swirling and it likely wont smooth/settle back out naturally.

Bowl of dry ingredients whisked together for marble brownies recipe

Simply Recipes / Mark Beahm

It will mostly settle once baked.

Let the blondies cool slightly in their pan set over a wire rack for 15 minutes.

Cool the blondies completely before slicing, at least 1 hour.

Dry ingredients folded into the wet ingredients using a rubber spatula for marble brownies recipe

Simply Recipes / Mark Beahm

Use a sharp knife to slice the blondies into 16 squares and serve.

Leftover blondies can be stored in an airtight container at room temperature for up to 4 days.

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Blondie batter in a bowl with a rubber spatula for marble brownies recipe

Simply Recipes / Mark Beahm

Bowl with some of the blondie batter, an egg yolk, melted chocolate, and Dutch processed cocoa powder next to the bowl with the blondie batter for marble brownies recipe

Simply Recipes / Mark Beahm

Brownie batter mixed together in a bowl using a rubber spatula

Simply Recipes / Mark Beahm

Semi-sweet chocolate chips added to bowl of brownie batter, and white chocolate chips added to bowl with blondie batter for marble brownies recipe

Simply Recipes / Mark Beahm

First layer of brownie and blondie mixtures added to lined square baking pan to create the marble brownies

Simply Recipes / Mark Beahm

Second layer of brownie and blondie batters added to lined square baking pan to create the marble brownies

Simply Recipes / Mark Beahm

An offset spatula used to create swirls in the marble brownies

Simply Recipes / Mark Beahm

Baked marble brownies in the lined square baking pan cooling on a wire rack

Simply Recipes / Mark Beahm

Close-up of a slice of marble brownie missing a bite surrounded by more, unbitten slices, all on a plate

Simply Recipes / Mark Beahm

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Stack of slices of marble brownies on a piece of parchment paper, and on the counter surrounding the stack, a carafe of milk and more slices of the brownies

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