A stack of chocolate and peanut butter swirl brownies on parchment paper. One piece is placed aside next to a spoonful of creamy peanut butter. The brownies have a rich, marbled appearance.

Peanut Butter Brownies

If you’re a fan of both chocolate and peanut butter, these Peanut Butter Brownies are a must-try! This simple yet delicious recipe takes classic brownies to the next level with a creamy swirl of peanut butter, creating the perfect blend of rich chocolate and smooth nutty flavor. Whether you’re making them for a special occasion or just to satisfy your sweet tooth, these brownies are guaranteed to please.

A stack of chocolate brownies with swirls of peanut butter on a parchment-lined surface. The brownies have a rich, marbled appearance, showcasing a mix of dark and light brown hues, with some cut into squares around the stack.
Peanut Butter Brownies. Photo credit: Easy Everyday Food.

A Quick and Easy Dessert

One of the best things about this recipe is how easy it is to whip up. Using a store-bought brownie mix takes the hassle out of measuring ingredients, so you can have a batch of fresh, homemade brownies in no time. The entire process, from mixing to baking, takes less than 30 minutes, making these the perfect dessert when you’re short on time but still want something indulgent.

Why Peanut Butter?

The combination of chocolate and peanut butter is a match made in dessert heaven. The creamy peanut butter adds richness and depth to the brownies, giving them a deliciously smooth texture that contrasts perfectly with the fudgy chocolate base. If you’re a peanut butter lover, this recipe allows you to customize the level of peanut butter swirl, so you can go as light or as heavy as you like. For an extra creamy touch, add a bit more peanut butter to the swirl.

Brownies with swirled peanut butter sit on parchment paper. One brownie is angled differently, and a spoonful of peanut butter is nearby. The rich, marbled texture is visible on the squares.
Peanut Butter Brownies. Photo credit: Easy Everyday Food.

Tips for Perfect Peanut Butter Brownies

Making these brownies is simple, but there are a few tips that will ensure your peanut butter brownies come out perfect every time.

  • Swirl Technique: When adding the peanut butter to the batter, use a spoon or toothpick to gently swirl it into the brownie mix. This creates a beautiful marbled effect and evenly distributes the peanut butter throughout the brownies.
  • Baking Time: Be sure to keep an eye on the brownies while they bake. Over-baking can lead to dry brownies, so take them out as soon as a toothpick comes out clean or with a few moist crumbs.
  • Cooling Before Cutting: Allow the brownies to cool completely before cutting them into squares. This helps them set and makes for cleaner cuts.

Customizing Your Brownies

These peanut butter brownies are already a treat, but if you want to take them to the next level, here are a few customization ideas.

  • Add Chocolate Chips: For an extra chocolatey twist, sprinkle some chocolate chips over the batter before baking. They’ll melt into the brownies, making them even more decadent.
  • Top with Nuts: If you’re a fan of crunch, add some chopped peanuts or pecans to the top of the batter before baking. The added texture pairs perfectly with the smooth peanut butter swirl.
  • Peanut Butter Frosting: If you really want to go all out, top your cooled brownies with a layer of peanut butter frosting. It adds an extra creamy and sweet finish to this already indulgent dessert.
A stack of peanut butter brownies with a marbled top sits on a wooden tray. Below, several brownies are displayed on parchment paper, showing their rich, swirled patterns. Text reads: "Peanut Butter Brownies" and "EasyEverydayFood.com.
Peanut Butter Brownies. Photo credit: Easy Everyday Food.

How to Serve and Store

These brownies are best served warm, with the peanut butter still slightly melted. Pair them with a scoop of vanilla ice cream for an over-the-top dessert, or enjoy them on their own with a glass of milk. If you have leftovers (which is unlikely!), store them in an airtight container at room temperature for up to three days. You can also freeze them for longer storage; just be sure to wrap them tightly in plastic wrap before placing them in the freezer.

A stack of chocolate and peanut butter swirl brownies on parchment paper. One piece is placed aside next to a spoonful of creamy peanut butter. The brownies have a rich, marbled appearance.

Peanut Butter Brownies

Prep Time 10 minutes
Cook Time 15 minutes
Servings 16
Calories 172 kcal

Ingredients
  

  • 1 box brownie mix any brand
  • 2 to 4 tablespoons peanut butter
  • 1 large egg
  • 2 tablespoons water
  • 2 tablespoons avocado oil

Instructions
 

  • Preheat the oven to 325°F. Line an 8×8 inch baking tin with parchment paper.
  • In a large mixing bowl, combine the brownie mix, water, egg, and avocado oil. Use an electric mixer or whisk to blend until the batter is smooth and well-combined.
  • Pour the brownie batter into the prepared baking tin, spreading it evenly.
  • Drizzle the peanut butter over the batter. You can use 2 to 4 tablespoons, depending on your preference, and swirl it into the batter. For extra creaminess, feel free to add a little more peanut butter.
  • Bake in the preheated oven for 15-18 minutes, or until a toothpick inserted into the center comes out clean.
  • Allow the brownies to cool on a cooling rack before cutting them into squares. Enjoy!

Nutrition

Serving: 1 brownieCalories: 172kcalCarbohydrates: 25gProtein: 2gFat: 7gSaturated Fat: 1gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gTrans Fat: 0.001gCholesterol: 10mgSodium: 106mgPotassium: 15mgSugar: 16gVitamin A: 15IUCalcium: 3mgIron: 1mg
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