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three box brownies stacked
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4.98 from 126 votes

How to Make Box Brownies Better

How to Make Box Brownies Better: a few simple ways to make your boxed brownies taste like they're made from scratch. Moist, fudgy, chocolate-y, and so easy!
Prep Time10 mins
Cook Time40 mins
Total Time50 mins
Course: Brownies, Dessert
Cuisine: American
Keyword: brownie mix, easy, moist
Servings: 9 brownies
Calories: 544kcal
Author: Jennifer Debth


  • 1 (18.4 oz) box chocolate brownie mix no mix-ins
  • 2/3 cup canola oil or other neutral flavored oil
  • 1/4 cup buttermilk
  • 2 large eggs
  • 1 tablespoon instant coffee granules
  • 1 tablespoon vanilla extract
  • 1/2 - 1 teaspoon salt
  • 1 cup semi-sweet chocolate chips/chunks plus more for topping
  • Maldon sea salt for garnish, if desired


  • Preheat oven to 350 degrees F.
  • Grease an 8x8 nonstick square pan with cooking spray, then line with a parchment sling. Set aside.
  • Place brownie mix, oil, buttermilk, eggs, instant coffee, vanilla, and salt into a large bowl.
  • Stir until well combined.
  • Fold in chocolate chips/chunks.
  • Pour batter into prepared pan, then top with additional chocolate chips/chunks, if desired.
  • Bake in preheated oven for 40-45 minutes (an inserted toothpick should come out kind of gooey).
  • Optional - top with maldon sea salt.
  • Let cool in the pan for 30 minutes, then remove, cut into squares, and enjoy!
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This is for a box calling for  2/3 cup oil, 1/4 cup water, and 2 eggs


Serving: 1brownie | Calories: 544kcal | Carbohydrates: 57g | Protein: 6g | Fat: 33g | Saturated Fat: 8g | Cholesterol: 43mg | Sodium: 453mg | Potassium: 157mg | Fiber: 2g | Sugar: 37g | Vitamin A: 81IU | Calcium: 26mg | Iron: 3mg