You’ve probably landed on this recipe because you want a super rich and fudgy brownie, but you want it to be quick and easy without a ton of kitchen mess…am I right? You’re in the right place! This recipe is a simple brownie hack that’s the secret to making box brownies better!

HOW TO MAKE BOX BROWNIES MOIST
I know we collectively cringe at the word “moist” but there’s not really a better word to describe this..ok maybe fudgy? But there’s only one extra ingredient that’s my extra special box brownie hack to getting the best, the riches, the fudgiest (and moist) brownies. Drum roll please…
MOLASSSES!
Trust me on this. Just doctoring the box of brownie mix with 3 tablespoons of molasses is going to be the best thing that has happened to your brownie baking game.

I got the inspiration to try this hack after making these Chewy Molasses Cookies. The recipe said that the molasses help keep the cookies super moist and chewy. That’s when I had that ‘light bulb’ moment…Maybe, if I add molasses to my doctored brownie mix it will do the same thing to my brownies?
And oh boy was it just the right trick!

Molasses is an incredible ingredient to add to a baking recipe, especially one that’s chocolate. By adding molasses you’re adding extra moisture with will make the baked good chewy and moist.
Even though molasses is sugar, it’s deep caramel flavor doesn’t add too much sweetness to the taste. Instead of making the brownies taste sweeter it’s enhancing the flavor of the chocolate making that taste deeper and richer.

INGREDIENTS
Here’s what you’ll need to level up these box brownies!
- Dark Chocolate Brownie Mix, this is the one I use every time!
- Oil
- Water
- Eggs
- Molasses
So easy right? Just 5 ingredients and you’re ready to bake. That’s the beauty of a doctored brownie mix recipe. It means the complexity of baking is removed. You can make these and enjoy the fudgy brownie you’ve always wanted!

HOW TO STORE FUDGE BROWNIES
Keep these covered with foil or in an air tight container at room temperature. I prefer to eat these within 3 days for best freshness and texture!
The best way to eat leftover brownies? Pop them in the microwave for 10-12 seconds that top with your favorite ice cream. These seriously are the best brownie for a brownie sundae!

Want more chocolate and easy baking recipes? Check out some of my other recipes here on the blog!
Hot Cocoa Brownies
No Bake Chocolate Cheesecake
Cookie Dough Pie
Salted Chocolate Chunk Cookies
Chocolate Mousse with Kahlua
Chocolate Espresso Muffins
Gingerbread Brownies
Or, browse through my collection of dessert recipes.
PrintDoctored Boxed Brownies
Make the fudgiest brownies ever with this easy doctored box brownie recipe! Just add one extra ingredient to doctor the brownie mix and make the richest, fudgiest brownies you’ve ever had!
- Prep Time: 10 minutes
- Cook Time: 33 minutes
- Total Time: 43 minutes
- Category: Chocolate
- Method: Baking
- Cuisine: American
Ingredients
-1 box of dark chocolate brownie mix (follow the instructions below for the eggs, water, oil)
-1/4 cup water
-1/2 cup vegetable oil
-2 eggs
-3 tablespoons molasses
Instructions
1. Preheat oven to 350 degrees. Spray a 9×9 baking dish with cooking spray.
2. Combine the brownie mix with the oil, water, and eggs. Stir in the 3 tablespoons of molasses.
3. Pour into the 9×9 baking dish and bake for 30-32 minutes.
Let cool before cutting, then serve and enjoy! These are incredible with ice cream!
Notes
Let these cool before cutting. Because these are moist and fudgy they are soft after the come out of the oven. Using a plastic knife helps in the cutting so that you’re not breaking them apart as you cut with a metal knife.
Do not overbake! Overbaking these will make them dry and cakey.
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