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A stack of fudgy brownies topped with ice cream and hot fudge sauce.

One Bowl Cocoa Brownies

Course: Dessert
Cuisine: American
Keyword: easy brownie recipe, fudgy brownie recipe, homemade brownie
Prep Time: 10 minutes
Cook Time: 30 minutes
Servings: 20 brownies
Calories: 257 kcal
Author: Malinda Linnebur

This is the easiest one bowl cocoa brownies you will find. They are dense, fudgy, rich, and gooey. This homemade brownie recipe will be your new go to!


  • cup (255g) butter
  • 1 cup (205g) packed brown sugar
  • 1 cup (215g) sugar
  • 4 large eggs
  • 1 tablespoon vanilla
  • cups (205g) all purpose flour
  • 1 cup (85g) cocoa powder
  • 1 teaspoon salt
  • 4 ounces (113g) chopped chocolate, optional


  1. Preheat the oven to 350°F. Grease OR line a 9x13 baking pan with parchment paper; set aside.

  2. In a large bowl melt the butter until hot. Add the brown sugar and regular sugar and whisk vigorously until well combined. Stir in the remaining ingredients until barely combined. If there are a few dry spots that is perfect. DON'T OVERMIX!

  3. Pour into prepared pan and bake for 25-30 minutes or until the middle is just set. It will continue to cook as it cools. Cool completely before cutting into bars.

Recipe Notes

  1. FREEZER FRIENDLY: Cool the brownies completely and wrap tightly in plastic wrap then in foil. Freeze for up to 3 months. Thaw overnight in the refrigerator and bring to room temperature before serving. 
  2. Cocoa Powder: You can use either natural or dutch-process cocoa powder.
Nutrition Facts
One Bowl Cocoa Brownies
Amount Per Serving (1 brownie)
Calories 257 Calories from Fat 135
% Daily Value*
Fat 15g23%
Saturated Fat 10g63%
Cholesterol 65mg22%
Sodium 220mg10%
Carbohydrates 30g10%
Fiber 5g21%
Sugar 20g22%
Protein 6g12%
Calcium 32mg3%
* Percent Daily Values are based on a 2000 calorie diet. Since different brands of ingredients have different nutritional information, the information shown is just an estimate.