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Slow Cooker Triple Chocolate Brownies

Three kinds of chocolate and chopped pecans add loads of flavor to these Slow Cooker Triple Chocolate Brownies.

Slow Cooker Triple Chocolate Brownies

Brownies are my very favorite indulgence. Brownies with three kinds of chocolate? Even better.

Typically I make fudgy and gooey brownies but these Slow Cooker Triple Chocolate Brownies from Martha Stewart turned out more cake-like, a little drier, and quite chewy around the edges. Even still, they were delicious and I couldn’t get enough of them.

Slow Cooker Triple Chocolate Brownies

Cocoa powder, bittersweet chocolate, and semi-sweet chocolate chips add plenty of chocolate flavor. Chopped pecans add some crunch.

Slow Cooker Triple Chocolate Brownies

My kids didn’t care for the taste of the bittersweet chocolate, so I got to enjoy these slow cooker brownies all week long. And enjoy then I did!

Slow Cooker Triple Chocolate Brownies

It’s necessary to line the Crock Pot with parchment paper so that the brownies do not burn. Cooking time can vary quite a bit based on how hot your crock pot cooks. If you know that your crock pot is a fast cooker, shorten the cooking time some. The middle will still look slightly undercooked when they are done, but it will firm up as it cools.

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Slow Cooker Triple Chocolate Brownies

Slow Cooker Triple Chocolate Brownies

Three kinds of chocolate and chopped pecans add loads of flavor to these Slow Cooker Triple Chocolate Brownies.
PREP: 10 minutes
COOK: 4 hours
TOTAL: 4 hours 10 minutes


  • Cooking spray
  • 1 1/4 cups all-purpose flour
  • 1/4 cup unsweetened cocoa powder
  • 3/4 teaspoon baking powder
  • 1/2 teaspoon kosher salt
  • 1/2 cup (1 stick) unsalted butter, cut into pieces
  • 8 ounces bittersweet chocolate, chopped
  • 1 cup sugar
  • 3 large eggs, lightly beaten
  • 1 teaspoon vanilla extract
  • 1 cup chopped pecans
  • 1 cup semi-sweet chocolate chips


  • Lightly coat a 4 to 5-quart crock pot insert with cooking spray. Place a piece of parchment paper, that is large enough to extend halfway up the sides in the bottom of the crock pot. Lightly spray parchment paper with cooking spray.
  • In a small bowl, whisk together flour, cocoa powder, baking powder, and salt.
  • Place butter and chopped chocolate in a medium microwave-safe bowl. Microwave for 30 seconds. Stir. Microwave another 30 seconds. If not completely melted, continue microwaving until melted.
  • Add sugar to chocolate mixture and whisk to combine.
  • Whisk in eggs and vanilla.
  • Stir in flour mixture just until flour is moistened. Fold in pecans and chocolate chips.
  • Pour batter into crock pot, smoothing out the top with a rubber spatula.
  • Cover and cook on LOW 3 1/2 hours. Uncover and continue to cook on LOW for 30 minutes.
  • Remove insert from crockpot and place on a wire rack to cool completely.


Cooking time will vary. If your crock pot runs a little hot, shorten the cooking time. The middle will look underdone, but will firm up as the brownies cool.


Calories: 331kcal
Author: Christin Mahrlig
Course: Crock Pot
Cuisine: American

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Recipe Source: slightly adapted from Martha Stewart

You might also like this Crock Pot Pecan Pie


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36 thoughts on “Slow Cooker Triple Chocolate Brownies”

  1. Kajal Vermaak

    Tx my oven is not working at the moment so this is a great treat for us. It’s in the slow cooker now let’s see 😁😁😁

  2. Beverly OMalley

    My usual recipe for brownies is just like this but uses only 1C of flour.
    If they are a bit dry in the slow cooker then maybe less flour would make them moister

  3. Has anyone tried box brownie mix in a crockpot? I have some and my oven broke. So, before I throw a box into the crockpot, I’m reaching out for help. I’m new to a crockpot as well.

    1. Christin
      Christin Mahrlig

      During the summer months, some people prefer to cook in a crock pot since it does not heat the kitchen up as much as heating the oven does.

    1. Christin
      Christin Mahrlig

      So glad you enjoyed them and that is nice to know that they turned out well baked in the oven. 🙂

        1. I used a 9″x9″ square pan. Baked at 170deg C for about 30-35 minutes. You can take this as a guide.

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