Brownie Cookie Sandwiches with Cookie Dough Buttercream Recipe
Introduction
These Brownie Cookie Sandwiches combine rich, fudgy brownies with a decadent cookie dough buttercream filling. They are perfect for anyone craving a dessert that’s both chocolaty and creamy, with a delightful twist on traditional cookies.

Ingredients
- 1/2 cup unsalted butter, melted
- 1 1/4 cups granulated sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- 1/2 cup unsweetened cocoa powder
- 1 cup all-purpose flour
- 1/4 teaspoon salt
- 1/2 teaspoon baking soda
- 1/2 cup semi-sweet chocolate chips
- 1/2 cup unsalted butter, softened (for buttercream)
- 1/4 cup brown sugar (for buttercream)
- 1/2 cup powdered sugar (for buttercream)
- 1 teaspoon vanilla extract (for buttercream)
- 1 tablespoon milk (for buttercream)
- 1/2 cup mini chocolate chips (for buttercream)
Instructions
- Step 1: Preheat your oven to 350°F (175°C) and line two baking sheets with parchment paper.
- Step 2: In a large bowl, whisk together the melted butter and granulated sugar until smooth. Add the eggs and vanilla extract; whisk until fully combined.
- Step 3: Stir in the cocoa powder, flour, salt, and baking soda until a thick batter forms. Fold in the semi-sweet chocolate chips gently.
- Step 4: Scoop tablespoon-sized portions of dough onto the prepared baking sheets, spacing them about 2 inches apart. Slightly flatten each ball with your fingers or the back of a spoon.
- Step 5: Bake for 10-12 minutes, or until the edges are set but the centers still look soft. Let cool on the baking sheets for 5 minutes, then transfer to a wire rack to cool completely.
- Step 6: To make the cookie dough buttercream, beat the softened butter, brown sugar, and powdered sugar in a large bowl until light and fluffy. Add the vanilla extract and milk, mixing until smooth.
- Step 7: Fold in the mini chocolate chips evenly throughout the buttercream.
- Step 8: Once the brownie cookies are completely cool, spread a generous amount of buttercream onto the flat side of one cookie. Top with another cookie to form a sandwich. Repeat with remaining cookies.
Tips & Variations
- For extra fudgy centers, slightly underbake the cookies by a minute or two.
- Swap mini chocolate chips in the buttercream for chopped nuts for added crunch.
- If you prefer a stronger chocolate flavor, add a teaspoon of espresso powder to the brownie batter.
- Use a piping bag to fill the sandwiches neatly and evenly for a polished look.
Storage
Store the brownie cookie sandwiches in an airtight container at room temperature for up to 3 days. For longer storage, refrigerate for up to a week, bringing them to room temperature before serving for the best texture. You can also freeze the sandwiches for up to 2 months; thaw overnight in the refrigerator.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use regular chocolate chips instead of mini chips in the buttercream?
Yes, you can use regular chocolate chips, but the mini chips distribute more evenly and provide better texture in the buttercream.
Do these brownie cookie sandwiches need to be refrigerated?
They can be kept at room temperature for a few days, but refrigeration helps the buttercream stay firm and extends freshness. Just let them come to room temperature before enjoying for the best flavor.
Print
Brownie Cookie Sandwiches with Cookie Dough Buttercream Recipe
- Total Time: 32 minutes
- Yield: 12 sandwich cookies 1x
Description
These Brownie Cookie Sandwiches with Cookie Dough Buttercream combine rich, fudgy brownies shaped into cookies with a luscious, chocolate-studded buttercream filling. Perfect for dessert lovers craving a decadent treat, these sandwiches are easy to make and deeply satisfying with a delightful contrast between chewy edges and soft centers.
Ingredients
Brownie Cookies
- 1/2 cup unsalted butter, melted
- 1 1/4 cups granulated sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- 1/2 cup unsweetened cocoa powder
- 1 cup all-purpose flour
- 1/4 teaspoon salt
- 1/2 teaspoon baking soda
- 1/2 cup semi-sweet chocolate chips
Cookie Dough Buttercream
- 1/2 cup unsalted butter, softened
- 1/4 cup brown sugar
- 1/2 cup powdered sugar
- 1 teaspoon vanilla extract
- 1 tablespoon milk
- 1/2 cup mini chocolate chips
Instructions
- Preheat Oven: Preheat your oven to 350°F (175°C) and line two baking sheets with parchment paper to prepare for baking the brownie cookies.
- Mix Wet Ingredients: In a large bowl, whisk together the melted butter and granulated sugar until the mixture is smooth. Add the eggs and vanilla extract, whisking until the batter is fully combined.
- Add Dry Ingredients: Stir in the unsweetened cocoa powder, all-purpose flour, salt, and baking soda gradually until you form a thick batter. Gently fold in the semi-sweet chocolate chips for extra chocolate bursts.
- Portion and Shape Dough: Scoop tablespoon-sized portions of the dough onto the prepared baking sheets, spacing each about 2 inches apart. Slightly flatten each ball to ensure even baking.
- Bake the Cookies: Bake for 10 to 12 minutes, or until the edges are set but the centers remain soft to keep the chewy texture. Allow the cookies to cool on the baking sheets for 5 minutes before transferring them to a wire rack to cool completely.
- Make Cookie Dough Buttercream: In a large bowl, beat the softened butter with the brown sugar and powdered sugar until the mixture becomes light and fluffy. Add vanilla extract and milk, mixing thoroughly to combine.
- Add Mini Chocolate Chips: Fold the mini chocolate chips into the buttercream evenly to incorporate little bursts of chocolate in the filling.
- Assemble Sandwiches: Once the cookies have cooled completely, spread a generous amount of the cookie dough buttercream onto the flat side of one cookie. Top with another cookie to create a sandwich. Repeat this process with the remaining cookies for delicious brownie cookie sandwiches.
Notes
- For best results, allow cookies to cool completely before assembling to prevent buttercream melting.
- You can substitute semi-sweet chocolate chips with dark or milk chocolate chips according to your preference.
- To store, keep sandwiches in an airtight container in the refrigerator for up to 3 days to maintain freshness.
- Butter should be at room temperature and softened for the buttercream to achieve a smooth and fluffy consistency.
- If you prefer, the brownie cookies can be made a day ahead and stored in an airtight container until ready to assemble.
- Prep Time: 20 minutes
- Cook Time: 12 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Keywords: brownie cookie sandwiches, cookie dough buttercream, chocolate cookie sandwiches, baked desserts, chocolate chip cookies, brownie cookies

