Crackly on the outside and rich in the center, Fudgy Brownie Sandwich Cookies are the ultimate treat for chocolate lovers. These decadent cookies deliver the texture of a chewy brownie in sandwich form, filled with a silky dark chocolate ganache that melts perfectly on the tongue.

Why You’ll Love This Recipe

These sandwich cookies combine the best elements of a brownie—fudgy interior, crispy edges, and deep chocolate flavor—into bite-sized indulgences. They are elegant enough for special occasions yet simple enough for a weekend bake. The dark chocolate ganache filling adds a creamy contrast to the chewy cookies, making every bite rich, gooey, and satisfying.

ingredients

(Tip: You can find the complete list of ingredients and their measurements in the recipe card below.)

For the brownie cookies:

unsalted butter
semi-sweet chocolate chips
light brown sugar
granulated sugar
large eggs
vanilla extract
all-purpose flour
unsweetened cocoa powder
baking powder
salt

For the ganache filling:

heavy cream
dark chocolate chips
butter

directions

Preheat the oven to 350°F (175°C) and line a baking sheet with parchment paper.
Melt the butter and chocolate chips together using a double boiler or microwave in 30-second intervals. Stir until completely smooth.
In a separate bowl, whisk together the light brown sugar, granulated sugar, eggs, and vanilla extract for 2–3 minutes until light and thick.
Slowly add the melted chocolate mixture into the egg mixture while whisking constantly.
Sift in the flour, cocoa powder, baking powder, and salt. Fold the mixture gently until well combined.
Use a small cookie scoop to drop even rounds of batter onto the prepared baking sheet, leaving space between each.
Bake for 8–10 minutes or until the tops are crackled but still soft in the center. Allow to cool completely on the tray.
For the ganache, heat the cream in a small saucepan until steaming (not boiling), then pour over the chocolate chips and butter. Let sit for 1–2 minutes.
Stir until smooth and thick. Let the ganache cool slightly to thicken for piping or spreading.
Pipe or spoon the ganache onto the flat side of half of the cookies, then top with the other halves to create sandwich cookies.
Let them set for 20 minutes at room temperature or chill briefly before serving.

Servings and timing

This recipe yields approximately 14 sandwich cookies.
Prep Time: 25 minutes
Cook Time: 10 minutes
Assembly and Set Time: 20 minutes
Total Time: 55 minutes

Variations

Salted Caramel Filling: Swap the ganache with a thick salted caramel for a sweet-and-salty twist.
Peppermint Ganache: Add 1/4 teaspoon peppermint extract to the ganache for a festive flavor.
Nutty Version: Stir in finely chopped walnuts or pecans into the cookie batter.
Espresso Kick: Add 1 teaspoon instant espresso powder to the batter to enhance the chocolate flavor.
White Chocolate Ganache: Use white chocolate chips for a lighter filling.

storage/reheating

Store the sandwich cookies in an airtight container at room temperature for up to 3 days or in the refrigerator for up to 5 days. Let refrigerated cookies come to room temperature before serving. Freezing is also an option—freeze unassembled cookies and ganache separately or freeze fully assembled cookies in a single layer before transferring to a freezer-safe container. Thaw overnight in the refrigerator or for an hour at room temperature.

FAQs

Can I make these cookies ahead of time?

Yes, both the cookies and ganache can be prepared a day in advance and assembled just before serving.

What type of chocolate is best for the ganache?

Use dark chocolate chips or a high-quality dark chocolate bar (at least 60% cocoa) for the richest flavor.

Can I use milk chocolate instead of dark?

Yes, but the result will be significantly sweeter and less intense.

How do I make the cookies the same size?

Use a small cookie scoop or weigh each dough ball for consistent sizing and even baking.

Why did my cookies spread too much?

This may occur if the batter is too warm or thin. Chill the batter briefly before scooping if needed.

Is the ganache supposed to be runny?

No, it should be smooth and thick enough to pipe or spread. Let it cool slightly if it’s too thin.

Can I skip the filling and serve the cookies plain?

Absolutely—they’re delicious on their own as fudgy brownie cookies.

What can I use instead of heavy cream for the ganache?

You can use full-fat coconut cream as a non-dairy alternative, though it will impart a subtle coconut flavor.

Do these cookies stay soft after storing?

Yes, they maintain a chewy, fudgy texture for several days if stored in an airtight container.

Can I double the recipe?

Yes, this recipe doubles well—perfect for parties or gifting.

Conclusion

Fudgy Brownie Sandwich Cookies are a rich, chocolate-forward dessert perfect for those who love intense cocoa flavor with a creamy center. These elegant yet easy-to-make cookies are a delightful way to elevate your usual baking routine. Whether served as a sophisticated tea-time treat or a cozy evening indulgence, they’re sure to satisfy every chocolate craving.