Name: Lumps of Coal: Bittersweet Chocolate Cookies Recipe
Prep time: 15 min
Cook time: 12 min
Total time: 2 h 27 min
Cuisine: American
Ingredients: ½ cup cold unsalted butter, diced into cubes; 1 cup packed light brown sugar; ½ cup granulated sugar, plus ⅓ cup extra to coat the cookies; 2 large eggs; 1 teaspoon pure vanilla extract; 2 cups Bob’s Red Mill Unbleached White Organic All-Purpose Flour; ½ cup black cocoa powder (can substitute Dutch process cocoa powder); 1 ½ teaspoons baking powder; ½ teaspoon baking soda; 1 teaspoon instant coffee or espresso powder; 1 teaspoon kosher salt; 2 cups dark chocolate chips

Print Recipe· 4.1 from 5 reviews

If you have a craving for something deeply chocolatey yet perfectly textured, the Lumps of Coal: Bittersweet Chocolate Cookies Recipe is your new best friend in the kitchen. These cookies strike an irresistible balance between rich, bittersweet chocolate flavor and just the right amount of chewiness, with a hint of coffee to lift the cocoa notes. Their unique rough, coal-like appearance makes them as fun to look at as they are to eat. Whether you’re baking for a crowd or just treating yourself, these cookies deliver a cozy, decadent experience that’s sure to become a favorite.

Ingredients You’ll Need

A top-down view of baking ingredients arranged neatly on a white marbled surface. In the center is a blue bag of Bob's Red Mill all-purpose organic flour. To the left, a large clear glass bowl holds white flour with a small pile of cocoa powder on top. Above it is a small metal sifter filled with cocoa powder resting next to a white bowl with more cocoa powder inside. A small white bowl with dark vanilla extract sits nearby. To the right, a clear glass bowl contains two raw eggs, separated shells scattered close by. At the bottom right, a white plate with a green rim is filled with dark chocolate chips. Next to that, a small clear glass bowl is filled with sugar, and a white bowl with brown sugar is on the left. Cubes of butter rest on wax paper near the bottom left corner. The scene is bright and clean, photo taken with an iphone --ar 4:5 --v 7

These ingredients are simple and straightforward, each bringing something essential to build the deep flavors, tender texture, and that distinctive coal-like look. From the cold butter that creates a flaky bite, to the black cocoa powder for intense color and richness, every item plays a starring role.

Cold unsalted butter, ½ cup: Cubed for easy creaming and a tender crumb.
Light brown sugar, 1 cup: Adds moisture and a slight caramel undertone.
Granulated sugar, ½ cup plus ⅓ cup extra: Provides sweetness and the perfect crunchy coating.
Large eggs, 2: Bind everything together and create structure.
Pure vanilla extract, 1 teaspoon: Enhances and rounds out chocolate’s boldness.
Unbleached white all-purpose flour, 2 cups: The base for the dough, providing body and softness.
Black cocoa powder, ½ cup: Delivers a deep, dark color and intense chocolate flavor; Dutch process cocoa works too.
Baking powder, 1½ teaspoons: Gives the cookies a gentle lift without too much rise.
Baking soda, ½ teaspoon: Adds lightness and helps browning.
Instant coffee or espresso powder, 1 teaspoon: Boosts the chocolate’s depth with subtle earthiness.
Kosher salt, 1 teaspoon: Balances sweetness and enhances all the other flavors.
Dark chocolate chips, 2 cups: Melts in every bite, adding pockets of gooey decadence.

How to Make Lumps of Coal: Bittersweet Chocolate Cookies Recipe

Step 1: Cream the Butter and Sugars

Start by adding the cold, diced butter, light brown sugar, and granulated sugar into the bowl of your stand mixer fitted with the paddle attachment. Beat on medium speed for about 4 to 5 minutes until fully combined and creamy. This step is key because creaming cold butter with sugar creates pockets of air that lend a subtle lift to your cookies. Then add the eggs and vanilla extract, mixing just until everything is smooth and well incorporated.

Step 2: Combine Your Dry Ingredients

In a separate large bowl, whisk together the unbleached flour, black cocoa powder, baking powder, baking soda, instant coffee powder, and kosher salt. Breaking up any lumps in the cocoa powder ensures an even texture and color in your dough. Gradually add these dry ingredients to the wet mixture, mixing until just blended. When your dough looks almost combined, fold in the dark chocolate chips, distributing the pockets of chocolate evenly throughout.

Step 3: Shape and Chill Your Dough

Divide the cookie dough into about 18 to 20 balls, each roughly three tablespoons. Using a spring-loaded cookie scoop can make this super easy. Then, for that signature “lump of coal” look, go ahead and gently reshape each ball with your hands, keeping the edges rough and a bit tall rather than smooth and flat. Place the dough balls on a baking sheet and refrigerate them for 30 minutes to an hour. Chilling helps the cookies hold their shape and enhances flavor.

Step 4: Prepare and Bake

Preheat your oven to 350°F and line two baking sheets with parchment paper. Roll each chilled dough ball in the reserved granulated sugar to coat thoroughly, adding a lovely sparkle and slight crunch once baked. Arrange the cookies about 3 inches apart on your sheets. Bake one tray at a time for 10 to 12 minutes. The edges and tops should set while the centers remain just slightly soft. This timing is crucial for achieving the perfect chewy center contrasted with a delicate crust.

Step 5: Cool and Enjoy

Remove the cookies from the oven and let them cool right on the baking sheet until they firm up enough to move without falling apart. This resting period solidifies their texture, sealing in that delicious bittersweet flavor that makes these cookies unforgettable. Enjoy warm or at room temperature for the best indulgence.

How to Serve Lumps of Coal: Bittersweet Chocolate Cookies Recipe

The image shows several dark chocolate cookie clusters with a rough, chunky texture. Each cluster is made of dense, crumbled dark brown chocolate dough mixed with visible smooth, shiny chocolate chips embedded in the uneven surface. The cookies sit on light brown parchment paper, placed on a white marbled surface, and the focus is sharp on one cookie in the center while the others fade softly into the background. The lighting highlights the rich, dark color and glossy chips. photo taken with an iphone --ar 4:5 --v 7

Garnishes

While these cookies shine all on their own, a light dusting of powdered sugar can add a festive touch, resembling freshly fallen snow on lumps of coal. For something extra special, sprinkle a few flaky sea salt crystals just before serving to highlight the bittersweet chocolate notes and deepen the taste experience.

Side Dishes

These cookies pair beautifully with a simple glass of cold milk or a steaming cup of coffee. A scoop of vanilla or cinnamon ice cream transforms them into an indulgent dessert. For gatherings, serve alongside fresh berries for a surprising but elegant contrast to the rich, dark chocolate flavor.

Creative Ways to Present

Have fun with presentation by stacking these coal-like cookies on a rustic wooden board or arranging them in a jar tied with twine for gift-giving. They’re also perfect nestled inside a festive tin layered with parchment paper, making them an irresistible edible gift for friends and family.

Make Ahead and Storage

Storing Leftovers

Store your leftover candies in an airtight container at room temperature for up to five days. Keeping them sealed preserves their chewy texture and prevents the chocolate chips from hardening or blooming.

Freezing

If you want to save the dough for later, freeze the cookie balls before baking by placing them on a tray until firm, then transferring to a freezer-safe bag. They can stay frozen for up to three months. When ready to bake, thaw them in the fridge overnight and proceed as usual.

Reheating

To bring back that freshly-baked warmth, microwave a cookie for about 10 to 15 seconds, or pop it in a 300°F oven for a few minutes. This revives their soft, melty center, making each bite taste like it just came out of the oven.

FAQs

Can I use regular cocoa powder instead of black cocoa powder?

Yes, you can substitute Dutch process cocoa powder if you don’t have black cocoa. The flavor will still be rich, though the cookies may be slightly lighter in color and a bit less intense.

Why is instant coffee powder included in the recipe?

The instant coffee boosts the chocolate’s depth and enhances the bittersweet notes without making the cookies taste like coffee. It’s a secret ingredient that really brings out the richness.

Can I make these cookies gluten-free?

You can try using a gluten-free all-purpose flour blend, but results may vary. Make sure your baking powder and other ingredients are also gluten-free to get the best results.

How can I make the cookies more chewy or more crispy?

For chewier cookies, try using more brown sugar and less granulated sugar, or bake them slightly less time. For crispier cookies, increase the granulated sugar a bit and bake a minute or two longer.

Do these cookies freeze well after baking?

Absolutely! Once cooled completely, place the cookies in an airtight container or freezer bag and freeze for up to two months. Thaw them at room temperature before serving.

Final Thoughts

There is something truly magical about biting into a Lumps of Coal: Bittersweet Chocolate Cookies Recipe cookie — that perfect blend of intense chocolate, a touch of salt, with a chewy yet delicate texture. If you love chocolate as much as I do, this recipe is a must-try. It’s approachable, fun to make, and offers rewarding, delicious results every time. Give it a go, and you might just find these bittersweet beauties becoming your go-to chocolate cookie for years to come.