3-Ingredient Brownie Mix Cookies
When a chocolate craving hits and you need cookies fast, brownie mix cookies are the answer. A box of brownie mix turns into chewy, fudgy cookies with almost no measuring.
Four ingredients (three if you skip the chips) and 20 minutes are all it takes. The edges get just crisp enough, and the centers stay soft for days.
Why These Chewy Cookies Work
They taste like the best part of a brownie, the crackly top and dense middle, but in cookie form. Because the mix does the measuring, there is almost no way to mess them up.
I keep a box of brownie mix in the pantry for exactly this. When my kid asks for cookies on a Tuesday, I can have a warm batch on the cooling rack before the kitchen is even clean.
Ingredients
- 1 (18.3 oz) box brownie mix: pick your favorite family-size box, no add-ins like caramel chunks
- 2 large eggs: bring them to room temperature for a smoother dough
- 1/3 cup vegetable oil: any neutral oil works, or see the butter swap below
- 1/2 cup semisweet chocolate chips, optional: adds extra pockets of melted chocolate
Variations / Substitutions
- Swap the oil for melted butter: gives a richer flavor and a slightly firmer edge, let the butter cool a bit before stirring it in
- Add 1/2 cup chopped walnuts or pecans: for a nutty crunch that cuts the sweetness
- Stir in 1 tsp instant espresso powder: deepens the chocolate without tasting like coffee
- Use milk or dark chocolate chips: white chocolate chips also work, just know the dough will be a touch sweeter
For a brownie fix straight from the pan, try our One-Bowl Fudgy Brownies.
How to Make Brownie Mix Cookies
Step 1: Mix the Dough
Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper. In a large bowl, stir together the 18.3 oz box of brownie mix, 2 large eggs, and 1/3 cup vegetable oil with a wooden spoon until no dry streaks remain. If you are adding the 1/2 cup chocolate chips, fold them in now.
The dough will be thick and glossy, almost like very stiff brownie batter. It should hold its shape when you scoop it, with a slight sheen on top.
Step 2: Scoop and Bake
Scoop rounded tablespoonfuls of dough onto the prepared sheet, leaving about 2 inches between each cookie. Bake for 10 to 12 minutes, until the edges look set and the tops are crackled.
The cookies will still look soft in the center, but they firm up as they cool. You want them to look just dry on top and barely puffed. Overbaking dries them out, so pull the sheet the second the edges brown.
Step 3: Cool and Serve
Cool the cookies on the sheet for 2 minutes, then transfer them to a wire rack. They continue to set and turn chewy as they cool.
Serve them while still warm for the fudgiest bite, or let them cool completely for a chewier texture. Either way, the crackly tops and shiny crinkles are hard to resist.
A Few Tips for Perfect Brownie Mix Cookies
- Use a medium cookie scoop (1.5 tablespoons) for even sizing and baking. If you roll by hand, the dough is sticky, so lightly wet your palms.
- The cookies spread a lot, so give them space. Bake in batches if needed rather than crowding the sheet.
- Err on the side of underbaking. A 10-minute bake yields a gooey center, 12 minutes gives a more set cookie. Pull them when they still look slightly wet in the middle.
- Store a slice of plain sandwich bread in the cookie container. The cookies absorb the bread’s moisture and stay soft for days.
Bake time tweaks for your ideal texture:
| Texture | Bake Time | Visual Cue |
|---|---|---|
| Fudgy, soft center | 10 mins | Edges set, tops barely dry |
| Chewy with crisp edge | 12 mins | Edges golden, tops crackled all over |
| Crisp throughout | 14 mins | Deep brown edges, no shine left |
Storing Leftover Cookies
Keep the cookies in an airtight container at room temperature for up to 5 days. A slice of plain bread in the container keeps them soft (replace the bread every other day). For longer storage, freeze baked cookies in a zip-top bag for up to 3 months; thaw at room temperature.
Frequently Asked Questions
Can I use a different flavor of brownie mix?
Yes. Dark chocolate or double chocolate mixes work beautifully. Avoid mixes with liquid caramel pouches or crunchy add-ins already inside the box, the dough won’t hold together the same.
How do I make these gluten-free?
Just pick a gluten-free brownie mix that measures 18 to 20 oz. The cookie dough will mix and bake the same way, no other swaps needed.
Can I make the dough ahead of time?
Yes, scoop the dough into balls and refrigerate up to 2 days. Bake straight from the fridge, adding 1 extra minute to the bake time.
Brownie Mix Cookies Recipe
Ingredients
Method
- Preheat oven to 350°F (175°C) and line a baking sheet with parchment. Stir brownie mix, eggs, and oil until smooth. Fold in chocolate chips if using.
- Scoop tablespoonfuls of dough 2 inches apart on the sheet. Bake 10 to 12 minutes until edges set and tops crackle.
- Cool on the sheet 2 minutes, then transfer to a wire rack. Serve warm or cooled.
