In case you didn’t notice, I’m very much in the midst of holiday baking. So far, we’ve made some graham cracker Heath bar toffee and Taylor Swift Chai cookies – with plenty more on the way!
These were next up. I asked each of my kids to share their top 3 holiday cookies, and one of FW’s favorites were these. Last year was the first year I had ever made them, and I wasn’t even planning on making them this year (like the Chai cookies!), but since they were top on his list, we made them again.
I need to first disclose a few things. First, this is not my recipe. One of B’s cousins made these cookies at his family’s annual golfing reunion, and FW gobbled them up there, so I asked for the recipe. Second, this uses a box of brownies! You can try to make them with your own homemade brownie, but I promise you, this recipe is not just easy, but it’s so tasty, and FW loves them this way. B’s cousin’s original recipe called for boxed frosting too – which you could definitely use! – but I think most boxes/cans of frosting have a funky aftertaste, so I opted to make my own and this is how the recipe has morphed into our own.

Here you go – here is the Chocolate Brownie Sandwich Cookie recipe. These are rich and very sweet, so if you’re eating them as part of a cookie tray, you may only want half of one so you have room to try some other cookies. Note that I typically double the recipe so that I have enough for us to enjoy, plus to give away with other holiday cookies.
Chocolate Brownie Sandwich cookies
Makes 1 dozen sandwiches (or as FW calls them, “chocolate hamburgers” — I don’t think that is very appetizing though)
Here’s what you need:
For the cookies
- 1 package brownie mix – enough that would make an 8×8 pan (I used 18.2 oz Duncan Hines® Dark Chocolate Fudge Brownie Mix)
- 1 large egg
- 2 Tablespoons water
- 1/3 cup vegetable oil
For the frosting
- 1/2 cup unsalted butter, softened
- 1.5 – 1/75 cups powdered sugar (approx 210 grams)
- 1/4 cup unsweetened cocoa powder
- 2 Tablespoons milk
- 1 teaspoon vanilla extract
- pinch salt
Here’s what you do:
- Preheat oven to 375° F. Prepare baking sheet by spraying with cooking spray.
- Combine brownie mix, oil, water, egg in large bowl with a spatula until blended.
- Drop by rounded tablespoons 2-inches apart on prepared baking sheets. I like them to be as even as possible, so I take about 25 grams of batter, roll it in my hands, and then drop it on the baking sheet.
- Bake 7 to 8 minutes or until just set in center. Cool cookies on pans for 3-5 minutes, then remove from pan and cool completely on a rack. I like to find pairs of cookies that look alike while they are cooling.
- While baking, make the frosting by combining butter, powdered sugar, cocoa powder, milk, vanilla and salt in a mixer and blending until smooth. Depending on consistency, add more or less milk (if too dry/thick) or powdered sugar (if too runny).
- Once cookies are cooled completely, spread about 1-1.5 Tablespoon frosting on flat side of half the cookies. Top with remaining cookies and gently press together.
Questions for you:
- What’s your top Christmas cookie(s)?
- Are you a chocolate fan? OR would these be too chocolatey for you? I like chocolate but these are just a little too much for me.










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