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Brownies with Peanut Butter Butterscotch Ganache

Brownies with Peanut Butter Butterscotch Ganache are fudgy brownies topped with butterscotch chips and a peanut butter butterscotch ganache.
Prep Time20 mins
Cook Time35 mins
Cooling Time2 hrs 30 mins
Total Time3 hrs 25 mins
Course: Dessert
Cuisine: American
Keyword: Brownies with Peanut Butter Butterscotch Ganache, peanut butter butterscotch ganache
Servings: 12 big brownies
Calories: 603kcal



  • cups (186g) all-purpose flour
  • cup (42g) dark cocoa
  • ½ teaspoon baking powder
  • ¼ teaspoon kosher salt
  • 4 large eggs, room temperature
  • 2 cups (400g) granulated sugar
  • ¾ cup (1½ sticks, 170g) unsalted butter, room temperature
  • 2 teaspoons vanilla

Peanut Butter Butterscotch Ganache

  • 1 cup semi-sweet chocolate chips
  • ¼ cup creamy peanut butter
  • cups butterscotch morsels, divided
  • ½ cup heavy cream



  • Preheat the oven to 350°F. Line a 9x13-inch baking dish with parchment paper, including up the sides of the dish.
  • In a large bowl add flour, cocoa, baking powder, and salt. Whisk together ingredients until they are fully incorporated.
  • In the bowl of a stand mixer or in a large bowl using a hand-held mixer, beat the eggs, sugar, butter, and vanilla until light and fluffy.
  • With the mixer off, add the flour mixture to the wet mixture. Turn mixer on low and mix until ingredients are well combined.
  • Pour brownies into the lined baking dish and bake for 30-35 minutes. Brownies are done when an inserted toothpick is removed with crumbs but no wet batter.
  • With about 10 minutes left in baking the brownies, make the ganache.

Peanut Butter Butterscotch Ganache

  • In a medium bowl, combine the chocolate chips, peanut butter, and ½ cup of butterscotch chips.
  • In a small saucepan over medium heat, add heavy cream and heat until simmering (2-3 minutes).
  • Pour the hot cream on top of the chocolate, peanut butter, and butterscotch chips. Stir continuously until melted and smooth.


  • Remove the brownies from the oven. Sprinkle the remaining cup of butterscotch chips over the hot brownies.
  • Pour the ganache over the butterscotch chips.
  • Let the brownies rest on the counter for about 30 minutes before transferring them to the refrigerator to chill for 2 hours, up to overnight.


Calories: 603kcal