Giant Flourless Chocolate Cookies

These giant flourless chocolate cookies bake up with crackly, shiny tops, crisp edges, and a fudgy, brownie-like center. They use just five base ingredients and no flour, making them naturally gluten-free.

I have been making these giant flourless chocolate cookies for years, and they still win over everyone who tries them. They sit right between a cookie and a brownie: the top cracks into a glossy, meringue-like shell, the edges turn crisp, and the middle stays dense and fudgy like the corner piece of a brownie. If you love that chewy brownie edge, this is the cookie for you.

The whole batter comes together in one bowl in about ten minutes. There is no mixer required, no dough to chill, and no flour to measure. Powdered sugar and cocoa powder do the work that flour normally does, which is why the texture lands somewhere between a brownie and a chocolate meringue.

Why you’ll love this recipe

These cookies are naturally gluten-free, butter-free, and oil-free, so the fudgy texture comes entirely from the egg whites, cocoa, and sugar rather than added fat.

Five base ingredients are all you need, and they are pantry staples you likely already have. The recipe is easy to customize, so you can fold in whatever nuts, chips, or dried fruit you like. Lastly, they are giant, which means one cookie is genuinely a treat or meant to be shared.

Ingredient notes

Powdered sugar acts as the flour in this recipe. It dissolves into the egg whites and gives the cookies their smooth, fudgy body and crackly top. Sift out any lumps before mixing.

Unsweetened cocoa powder brings the deep chocolate flavor and, along with the powdered sugar, provides the structure. Natural or Dutch-process both work here; Dutch-process gives a darker color and smoother flavor.

Egg whites bind everything together and create the shiny, crackly surface as the cookies bake. Use the whites from two large eggs.

Vanilla bean paste or vanilla extract rounds out the chocolate.

For add-ins, I use chopped almonds with dark and white chocolate chips for pockets of melted chocolate. You can swap in peanuts, walnuts, or cashews, or use whatever chocolate chips you have on hand.

How to make giant flourless chocolate cookies

Add the powdered sugar, cocoa powder, egg whites, vanilla, and salt to a large bowl. Mix until fully combined and no lumps of powdered sugar or cocoa remain. The batter should look like a very thick brownie mix. If it seems like it will not come together, keep mixing; it usually does after a minute or so. Only if it is truly too stiff, add a few drops of water at a time, being careful not to add too much, since extra liquid changes the texture.

Gently fold in your add-ins until they are evenly distributed.

Line a baking sheet with parchment paper or a silicone baking mat. Because these cookies are butter-free and oil-free, they stick easily, so don’t skip the liner. Divide the dough into six portions, spacing them well apart. The cookies spread as they bake, so use two sheets or bake in two batches.

Bake at 350°F for 18 to 22 minutes, depending on how chewy you like them. You are looking for cracks across the surface and a center that is still fudgy. I usually pull mine at 20 minutes.

Let the cookies cool completely on the pan before removing them. They are delicate while warm and set up as they cool, so lifting them too early will break them.

Tips for the best flourless chocolate cookies

Do not overbake. The centers should still look fudgy when you take the pan out, since the cookies continue to set as they cool. Overbaking trades the brownie-like middle for a dry, crumbly one.

Sift the cocoa and powdered sugar if either is lumpy. A smooth batter gives you the cleanest crackly top.

Always use parchment or a silicone mat. With no butter or oil in the batter, these cookies will stick to a bare pan.

Cool completely before lifting. This is the single most important step for getting the cookies off the pan in one piece.

Variations

This recipe takes add-ins well, so treat the base as a starting point. Try peanut butter chips, cinnamon chips, milk chocolate, or mint chocolate in place of the chips listed. Dried fruit is excellent here too; dried cherries, dried cranberries, or candied orange peel all pair beautifully with the dark chocolate. For a fun dessert, sandwich a scoop of ice cream between two cooled cookies.

Storage

Store cooled cookies in an airtight container at room temperature for up to three days. The crackly tops are crispest on the first day and soften slightly as they sit, while the centers stay fudgy.

Frequently Asked Questions

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