I can never resist these Brownie Mix Cookies because they bake up chewy, rich, and wildly chocolatey with that perfect crackly brownie top. No one ever guesses they start with a box mix.

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I’m obsessed with these Easy Brownie Mix Cookies because they taste like the best part of a brownie pan, the chewy edges, packed into thick little cookies. I love how the chocolate brownie mix gives them that deep, fudgy bite without any drama, and the semisweet chocolate chips make every bite extra rich.

But not too fancy. Just seriously good.

The centers stay soft, the edges get that slight crackly thing, and I cannot leave them alone on the counter. And honestly, I like them even better than regular brownies when I want something bold, chocolatey, and dangerously snackable.

Ingredients

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Brownie mix does the heavy lifting, giving you that fudgy cookie shortcut fast.
Egg holds everything together, so the cookies don’t crumble into sad little pieces.
Vegetable oil keeps them soft, chewy, and a little glossy in the best way.
Water loosens the dough just enough, because brownie mix can get thick quickly.
Vanilla makes the chocolate taste warmer and richer.
Totally optional, but I’d add it.
Chocolate chips or chunks bring melty pockets, because more chocolate usually isn’t a problem.
Flaky sea salt adds a tiny crunch and makes the sweetness pop.
Plus, it’s pretty.

Ingredient Quantities

1 (18.3 ounce) box chocolate brownie mix

1 large egg

1/3 cup vegetable oil

2 tablespoons water

1 teaspoon vanilla extract (optional)

1 cup semisweet chocolate chips or chunks (optional for extra chocolate)

Flaky sea salt for sprinkling, optional

How to Make this

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1. Preheat oven to 350 degrees F (175 degrees C) and line two baking sheets with parchment paper or silicone mats.

2. In a medium bowl combine the brownie mix, egg, vegetable oil, water, and vanilla extract if using.

3. Stir until a smooth, glossy dough forms and no dry streaks remain.

4. Fold in the chocolate chips or chunks if using, distributing evenly.

5. Use a
1.5 tablespoon cookie scoop or two spoons to drop rounded tablespoons of dough onto the prepared sheets, spacing about 2 inches apart.

6. For uniform cookies gently roll each mound into a ball with lightly greased or floured hands, then place on the sheet.

7. Bake for 9 to 12 minutes until the edges are set and the centers still look slightly underbaked for a chewy texture.

8. Remove from oven and immediately sprinkle with flaky sea salt if desired.

9. Let cookies cool on the baking sheet for 5 to 10 minutes to set, then transfer to a wire rack to cool completely.

10. Store cooled cookies in an airtight container at room temperature for up to 4 days.

Equipment Needed

1. Mixing bowl (medium)
2. Rubber spatula or wooden spoon
3. Measuring cups and spoons
4. Cookie scoop (1.5 tablespoon) or two spoons
5. Baking sheets (2)
6. Parchment paper or silicone baking mats
7. Oven mitts or heatproof potholders
8. Wire cooling rack

FAQ

Can I make the dough ahead of time and bake later? Yes. Refrigerate the dough for up to 48 hours in an airtight container, or freeze for up to 1 month. Bring chilled dough to room temperature for 10 to 15 minutes before baking, or bake from frozen adding a couple of extra minutes to the bake time.

How do I get chewy cookies instead of cakey ones? Use the full amount of oil, do not overmix, and bake just until the edges are set and the centers look slightly soft. Cooling on the baking sheet for 5 minutes helps them finish cooking and stay chewy.

Can I omit the egg for an egg free version? Yes. Replace the egg with a flax egg (1 tablespoon ground flaxseed mixed with 3 tablespoons water, rested 5 minutes) or use 1/4 cup applesauce. Texture will be slightly different but still tasty.

What if my brownie mix already contains chocolate chips? You can omit the extra chocolate chips or reduce the amount. Adding more chips increases gooeyness and chocolate intensity but may change baking time slightly.

Do I need to chill the dough before baking? No, chilling is optional. Baking right away yields slightly flatter cookies. Chilling firms the dough for thicker cookies and develops flavor.

How should I store leftover cookies and how long will they keep? Store cooled cookies in an airtight container at room temperature for up to 4 days. For longer storage, freeze in a single layer on a sheet pan then transfer to a freezer bag for up to 3 months. Warm briefly before serving if desired.

Easy Brownie Mix Cookies Recipe Substitutions and Variations

Egg substitutions:
- 1/4 cup unsweetened applesauce (moisture and binding)
- 1/4 cup mashed ripe banana (adds mild sweetness and moisture)
- 1/4 cup plain yogurt or Greek yogurt (keeps cookies tender)
- 1 tablespoon ground flaxseed mixed with 3 tablespoons water (let sit 5 minutes for a flax “egg”)
Vegetable oil substitutions:
- Melted butter, same volume (richer flavor)
- Melted coconut oil, same volume (subtle coconut note)
- Light olive oil or avocado oil, same volume (neutral, heart-healthy)
- Applesauce 1:1 to reduce fat and keep moisture
Water substitutions:
- Brewed coffee, same amount (deepens chocolate flavor)
- Milk or plant milk, same amount (richer texture)
- Buttermilk or diluted yogurt 1:1 with water for slight tang and tenderness
Semisweet chocolate chips or chunks substitutions:
- Chopped dark chocolate or chocolate bars (controls cocoa percentage)
- Milk chocolate chips for a sweeter cookie
- White chocolate chips or chunks for contrast
- Chopped nuts, dried cherries, or peanut butter chips for texture and flavor variety

Pro Tips

1) Chill the scooped dough for 10 to 15 minutes before baking. It helps the cookies spread less so you get tall, fudgy centers instead of thin flat discs.

2) Mix just until the batter is smooth and homogenous. Overworking can make the texture cakier instead of dense and brownie like.

3) Watch them, not the clock. Ovens vary a lot, so pull the cookies when the edges are set but the centers still look slightly glossy if you want them chewy.

4) To revive stored cookies, warm a single layer in a 300 degree F oven for 3 to 5 minutes or microwave a cookie for about 7 to 10 seconds. It brings back that fresh baked softness.

Easy Brownie Mix Cookies Recipe

Recipe by Kate Sinclair

0.0 from 0 votes

I can never resist these Brownie Mix Cookies because they bake up chewy, rich, and wildly chocolatey with that perfect crackly brownie top. No one ever guesses they start with a box mix.

Servings

servings

Calories

320

kcal

Equipment: 1. Mixing bowl (medium)
2. Rubber spatula or wooden spoon
3. Measuring cups and spoons
4. Cookie scoop (1.5 tablespoon) or two spoons
5. Baking sheets (2)
6. Parchment paper or silicone baking mats
7. Oven mitts or heatproof potholders
8. Wire cooling rack

Ingredients

1 (18.3 ounce) box chocolate brownie mix
1 large egg
1/3 cup vegetable oil
2 tablespoons water
1 teaspoon vanilla extract (optional)
1 cup semisweet chocolate chips or chunks (optional for extra chocolate)
Flaky sea salt for sprinkling, optional

Directions

Preheat oven to 350 degrees F (175 degrees C) and line two baking sheets with parchment paper or silicone mats.
In a medium bowl combine the brownie mix, egg, vegetable oil, water, and vanilla extract if using.
Stir until a smooth, glossy dough forms and no dry streaks remain.
Fold in the chocolate chips or chunks if using, distributing evenly.
Use a
5 tablespoon cookie scoop or two spoons to drop rounded tablespoons of dough onto the prepared sheets, spacing about 2 inches apart.
For uniform cookies gently roll each mound into a ball with lightly greased or floured hands, then place on the sheet.
Bake for 9 to 12 minutes until the edges are set and the centers still look slightly underbaked for a chewy texture.
Remove from oven and immediately sprinkle with flaky sea salt if desired.
Let cookies cool on the baking sheet for 5 to 10 minutes to set, then transfer to a wire rack to cool completely.
Store cooled cookies in an airtight container at room temperature for up to 4 days.

Notes

Below you’ll find my best estimate of this recipe’s nutrition facts. Treat the numbers as a guide rather than a rule—great food should nourish both body and spirit. Figures are approximate, and the website owner assumes no liability for any inaccuracies in this recipe.