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Slow Cooker Peanut Butter Brownies

Once you make these Slow Cooker Peanut Butter Brownies - you'll never make brownies in the oven again! Seriously, the best brownies EVER and the recipe is SO easy!
Course Dessert
Cuisine American
Keyword brownies, slow cooker peanut butter brownies
Prep Time 5 minutes
Cook Time 3 hours
Total Time 3 hours 5 minutes
Servings 8 servings
Calories 849kcal
Author Trish - Mom On Timeout


  • 1/2 cup unsalted butter melted
  • 1/2 cup chunky peanut butter
  • 1 1/2 cups granulated sugar
  • 2/3 cup unsweetened cocoa powder
  • 3 large eggs lightly beaten
  • 2 tsp vanilla extract
  • 1/3 cup all-purpose flour
  • 1/2 tsp salt
  • 2/3 cup semi-sweet chocolate chips
  • 2/3 cup peanut butter chips

Peanut Butter Sauce

  • 3/4 cup creamy peanut butter
  • 3/4 cup heavy whipping cream
  • 1/3 cup granulated sugar
  • 1/4 cup light corn syrup
  • 1/2 tsp vanilla extract


  • Line a 6 qt slow cooker with non-stick foil. (If using regular foil, butter the foil.)
  • Whisk together melted butter and peanut butter until combined.
  • Whisk in sugar, cocoa powder, eggs, and vanilla extract.
  • Stir in flour and salt just until combined.
  • Fold in chocolate and peanut butter chips.
  • Pour the batter into the prepared slow cooker and spread evenly.
  • Place a paper towel in between the lid and the insert when covering. This keeps the steam from dropping back onto the brownies.
  • Cook on low heat for 2 1/2 to 3 hours. The brownies are down when the edges are set.
  • Serve hot or cool to room temperature.

Peanut Butter Sauce

  • Combine all the ingredients, except for the vanilla extract, in a medium sauce pan.
  • Cook over medium heat, stirring frequently, until all the sugar has dissolved.
  • Remove from heat, stir in the vanilla extract and let cool slightly before serving.
  • Keep refrigerated for up to 2 weeks.


Calories: 849kcal | Carbohydrates: 86g | Protein: 18g | Fat: 53g | Saturated Fat: 24g | Cholesterol: 126mg | Sodium: 403mg | Potassium: 501mg | Fiber: 7g | Sugar: 69g | Vitamin A: 779IU | Vitamin C: 1mg | Calcium: 64mg | Iron: 4mg