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Brownies with a jug of milk and a fork
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5 from 4 votes

Peanut Butter Brownies

Chocolaty, rich and fudgy Peanut Butter Brownies with a crackly top and swirls of tasty peanut butter in an easy to make recipe!
Prep Time20 minutes
Cook Time35 minutes
Total Time55 minutes
Course: Dessert
Cuisine: American
Keyword: bars, brownie, dessert
Servings: 18 large brownies
Calories: 363kcal
Author: Tricia

Ingredients

  • cup boiling water (5-1/2oz)
  • 2 ounces bittersweet or unsweetened chocolate chopped fine
  • ½ cup Dutch-processed cocoa (54g) or natural cocoa
  • 2 ½ cups granulated sugar (554g)
  • cup vegetable oil (5oz)
  • 3 large eggs room temperature
  • 4 tablespoons unsalted butter melted (2oz or 56g)
  • 2 teaspoons vanilla extract
  • 1 ¾ cups all-purpose flour (210g)
  • 1 teaspoon salt
  • 1 cup smooth peanut butter (265g)

Instructions

  • Adjust oven rack to the middle-low position and heat to 350°F.
  • Make a foil or parchment sling for a 13x9-inch baking pan. Press the foil into the corners and up the sides of the pan, smoothing the foil flush with the pan. Spray the foil generously with vegetable cooking spray and set aside.
  • Whisk the boiling water, chocolate and cocoa in a large bowl until all chocolate is melted. Add the sugar, oil, eggs, melted butter and vanilla. Whisk until combined. Gently fold in the flour and salt just until blended. Spread the batter into the prepared pan.
  • Dollop teaspoons of peanut butter over the brownie batter then swirl with a knife. Try not to leave the peanut butter in giant clumps.
  • Bake for 33 to 38 minutes or until a toothpick inserted in the center comes out with a few moist crumbs but no wet batter.
  • Transfer to a rack to cool before cutting. Lift the brownies out of the pan using the foil or parchment sling. Cut into 2-inch squares and serve.

Notes

  • Store at room temperature in an airtight container for up to 5 days.
  • Brownies can be frozen, well sealed in an airtight container for up to 3 months.
Nutritional information is calculated using an ingredient database and should be considered as an estimate. When multiple ingredient alternatives are given, the first listed is calculated for nutrition. Garnishes and optional ingredients are not included.

Nutrition

Calories: 363kcal | Carbohydrates: 42g | Protein: 7g | Fat: 21g | Saturated Fat: 6g | Polyunsaturated Fat: 7g | Monounsaturated Fat: 7g | Trans Fat: 1g | Cholesterol: 34mg | Sodium: 208mg | Potassium: 181mg | Fiber: 3g | Sugar: 29g | Vitamin A: 117IU | Calcium: 20mg | Iron: 2mg