This is a simple homemade brownie mix that you're going to want to have on hand at all times. You'll only need to add butter and eggs the next time you want a warm brownie.
To make the mix, whisk together the flour, cocoa, sugar, baking powder and salt until well combined. Store in a jar or another tightly covered container.
Brownie Instructions
Preheat oven to 350°F. Add 3¾ cups (1 batch) of this brownie mix to a large bowl. Add the eggs, butter, and vanilla. Stir well to combine.
Pour into a greased 9x13-inch pan**. Bake for 28-32 minutes or until center is set. Remove and cool before cutting into bars.
Video
Notes
*Either regular or dutch process cocoa powder is fine. Dutch process cocoa powder makes them darker and richer.
**You can make brownies for an 8×8 or 9×9 pan too. Simply use 1 3/4 cup plus 2 tablespoons of brownie mix, 2 eggs, 1/2 cup melted butter, and 1/2 teaspoon vanilla.