DIY Brownie Mix

Skip the store-bought boxed mixes and create your own DIY brownie mix for infamous better-than-box fudgy brownies anytime the craving hits.

Course Dessert

Cuisine Brownies

Keyword diy brownie mix

Prep Time 10

Total Time 10

Servings mix

Calories 21115kcal

1¼ cups granulated sugar
½ cup powdered sugar
¾ cups all-purpose flour
¾ cups unsweetened cocoa powder I've tested these with Hershey's & Target's Good & Gather brand
1 teaspoon kosher salt
½ teaspoon baking powder not baking soda!
1 tablespoon cornstarch
¾ cup semi-sweet chocolate chips or chunks
1 teaspoon espresso powder totally optional!

Measure out dry ingredients in each bag: 1¼ cups granulated sugar, ½ cup powdered sugar, ¾ cups all-purpose flour, ¾ cups unsweetened cocoa powder , 1 teaspoon kosher salt, ½ teaspoon baking powder, 1 tablespoon cornstarch, ¾ cup semi-sweet chocolate chips or chunks, 1 teaspoon espresso powder (optional).
Tip: For easy filling, fold the top of the bag down a few inches, then add the sugars first as it holds down the bag. Close and shake bag to combine.
On the quart-size bag, attach printable tag or write:
"Add: 2 large eggs, 1 teaspoon vanilla extract, ½ cup vegetable oil, and ¼ cup water. Pour batter into greased light-colored metal aluminum pan, top with an optional extra ¼ cup chocolate chips, and bake at 325°F according to pan size below:
- 9x9”: for 32-36 minutes
- 9x13”: for 20-24 minutes
- Note: Glass pans will take longer to bake"
Store in pantry for 1-2 months. Each bag makes about 12 brownies.

Measure out dry ingredients into container: 8¾ cups granulated sugar, 3½ cups powdered sugar, 5¼ cups all-purpose flour, 5¼ cups unsweetened cocoa powder, 7 teaspoons kosher salt, 3½ teaspoon baking powder, 7 tablespoons cornstarch, 5¼ cups semi-sweet chocolate chips or chunks5¼ cups semi-sweet chocolate chips or chunks, 7 teaspoons espresso powder (optional).
Close and shake bag or container to combine. If measuring directly into the storage container, leave 3-4" on top of extra space so that you can shake it to combine.
On the container, attach printable tag or write:
"Add: 3½ cups brownie mix (or 1 pre-measured bag), 2 large eggs, 1 teaspoon vanilla extract, ½ cup vegetable oil, and ¼ cup water. Pour batter into greased light-colored metal aluminum pan, top with an optional extra ¼ cup chocolate chips, and bake at 325°F according to pan size below:
- 9x9”: for 32-36 minutes
- 9x13”: for 20-24 minutes
- Thick 9x13”: Double ingredients and bake for 32-36 minutes.
- Note: Glass pans will take longer to bake

Store this homemade brownie mix recipe in the pantry for 1-2 months.

For full brownie recipe, see my better-than-box fudgy brownies post.