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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!
Prep Time5 mins
Cook Time3 hrs
Total Time3 hrs 5 mins
Course: Dessert
Cuisine: American
Keyword: brownies, slow cooker peanut butter brownies
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