Thick, Fudgy Brownie Cookies Made with a Box Mix and Loaded with Triple Chocolate Chips – Your New Favorite One-Bowl Treat!

Say hello to your new go-to treat—Brownie Mix Cookies! These cookies are rich, chewy, and packed with chocolatey goodness, thanks to a shortcut using boxed brownie mix. With minimal ingredients and maximum flavor, they’re the perfect quick fix for sudden sweet cravings or last-minute dessert needs. Whether you keep them classic or add fun mix-ins, this recipe is as easy as it is delicious.

Recipe Rundown

The Brownie Cookie Breakthrough 

I’ve been wanting to nail brownie mix cookies for so long. I know—it’s just a box mix, but still! I could never get them to bake up the way I wanted. Too soft, too flat, too unpredictable.

But Finally… I Got It!

After some trial and error (and of course taste-testing), I finally figured it out. These are IT. Crispy on the edges, perfectly chewy in the center—everything I dreamed a brownie cookie could be.

Simple but So Good

I kept this batch classic with a triple chocolate chip mix—white, milk, and dark chips all in one. Totally great for the first batch, but I’m already brainstorming more ideas. I’d LOVE to hear if you have any suggestions for flavor add-ins. 

Next Up: Brownie Sandwiches?

I’m definitely making these again with new twists, but why not try them with a little buttercream?? I’m thinking:

• Double Chocolate– with a rich chocolate frosting center
• Chocolate Strawberry Shortcake- with fresh berries and a swirl of whipped cream
• Peppermint- candy cane frosting, perfect for the holidays

And yes, brownie cookie sandwiches will be a thing. Well, over in my world at least.

FAQ

Q: Can I use any brand of brownie mix?

A: Yes! Just make sure it’s a standard 18–20 oz box. Any classic or fudge brownie mix works great.

Q: Do I need to chill the dough before baking?

A: Nope! This dough is ready to scoop and bake right away—no waiting necessary.

Q: Can I add nuts or other mix-ins?

A: Definitely! Chopped walnuts, peanut butter chips, or even crushed pretzels would be delicious.

Q: How should I store the cookies?

A: Keep them in an airtight container at room temperature for up to 5 days. You can also freeze them for longer storage.

Sprinkle of Fun

Bake these brownie cookies and bring them over to your friend’s house for a night of absolutely no productivity. Just endless scrolling, sending each other the same memes you’ve both already seen, and watching videos that somehow spiral from “funny cat” to “inappropriate game show moments.”

The cookies are just your excuse to pretend this was a planned hangout and not an accidental 3-hour meme marathon.

Easy Brownie Mix Cookies

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• Author: Taryn Camp

Ingredients

Scale 1x2x3x

• 1 box brownie mix (18–20 oz)
• 2 large eggs
• 1/4 cup vegetable oil
• 1/4 cup all-purpose flour
• 1 teaspoon vanilla extract
• 1/2 cup chocolate chips- I used triple chips like these 

Instructions

1. Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
2. In a large bowl, combine the brownie mix, flour, eggs, oil, and vanilla extract.
3. Stir until a thick, sticky dough forms.
4. Fold in the chocolate chips.
5. Scoop about 1.5 tablespoons of dough (a medium cookie scoop works great) and roll into balls.
6. Place the dough balls onto the prepared baking sheet, spacing them 2 inches apart.
7. Bake for 9-11 minutes. The edges should be set, but the centers will still look soft. They will firm up as they cool.
8. Let the cookies cool on the baking sheet for 5 minutes, then transfer them to a wire rack to cool completely.

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