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    Home » Recipes » Brownies Bars and Slices

    Peanut Butter Brownies

    Published: Feb 11, 2023 · Modified: Jul 28, 2023 by Vicki · Leave a Comment

    Jump to Recipe
    Pinterest graphic for Peanut Butter Brownies.
    Homemade Peanut Butter Brownies graphic for Pinterest.

    These chocolatey Peanut Butter Brownies are soft and gooey and will melt in the mouth. Using our favourite Chocolate Brownie recipe and adding swirls of creamy peanut butter - it's a match made in heaven!

    Homemade Peanut Butter Brownie squares sitting on a white background.

    These are the best Peanut Butter Brownies ever! They're super simple to make and are perfect to have with a cup of tea.

    We love a good peanut butter recipe like these Peanut Butter Bliss Balls. After a quick chocolate fix? Our Vegan Mug Brownie and Chocolate Mug Cake take 5 minutes to make.

    Jump to:
    • Why You'll Love This Recipe
    • Ingredients
    • Step by Step Directions
    • FAQs & Expert Tips
    • You Might Also Love
    • 📖 Recipe
    • Comments

    Why You'll Love This Recipe

    • Freezer-friendly.
    • Only 7 ingredients.
    • The ultimate combination of chocolate and peanut butter.

    Ingredients

    Labelled ingredients to make Peanut Butter Brownies

    Note: The full quantities are shown in the recipe card below.

    Unsalted butter - unsalted butter gives you complete control of the overall flavour of your recipe, as the salt content in different butter brands can vary a lot.
    Plain flour - also known as all-purpose flour.
    Sugar - use white sugar.
    Egg - use a medium to large size egg.
    Dark Chocolate - also known as plain or semi-sweet chocolate. Use dark chocolate melts, especially for cooking or a chocolate bar broken into pieces.
    Vanilla extract - use vanilla extract or pure vanilla bean paste. Avoid using vanilla essence, as it's less intense.
    Peanut butter - use smooth peanut butter for best results.

    Step by Step Directions

    Note: This is a summary of the instructions. The full ingredients and instructions are shown in the recipe card below.

    Butter and chocolate in a saucepan ready for melting.

    1. Melt the butter and chocolate in a saucepan over medium heat.

    Chocolate and butter melted in a saucepan.

    2. Stir the mixture regularly until melted, then leave to cool for 5 minutes off heat.

    Eggs being whisked in a miing bowl.

    3. Whisk the eggs and sugar together - you can do this with a manual whisk.

    Brownies being mixed in a mixing bowl.

    4. Add the chocolate butter mixture and vanilla extract to the egg mixture.

    Chocolated brownie mix in a bowl with whisk.

    5. Whisk to combine.

    Flour added to a chocolate brownie mix in mixing bowl.

    6. Add the flour.

    Peanut butter brownie mix in a bowl.

    7. Gently mix until the flour is combined.

    Raw Chocolate Brownie Batter mixed with Peanut Butter swirls in square baking tin.

    8. Pour into the baking tin. Melt the peanut butter in the microwave for a minute until runny. Pour it all over the top of the batter and use the tip of a knife or a skewer to swirl it into the batter. Bake until set.

    Overhead image of Peanut Butter Brownies sitting on a white background.

    FAQs & Expert Tips

    Can you freeze Peanut Butter Brownies?

    Yes, you can freeze them for up to 3 months (wrapped well).

    How do you store Peanut Butter Brownies?

    Peanut Butter Brownies will keep for 3 days stored in an airtight container in a cool pantry. They can also be stored in the refrigerator.

    Can you add Chocolate Chips to Peanut Butter Brownies?

    Yes! Chocolate chips can be added to this recipe for an intense chocolate flavour.

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    📖 Recipe

    Squares of Peanut Butter Brownies sitting on a white background.

    Peanut Butter Brownies

    Chocolatey peanut butter goodness in the form of a brownie!
    5 from 3 votes
    Print Pin Save Saved! Rate
    Course: Baking
    Cuisine: Western
    Keyword: peanut butter brownies
    Prep Time: 10 minutes minutes
    Cook Time: 45 minutes minutes
    Total Time: 55 minutes minutes
    Servings: 16
    Calories: 266kcal
    Author: Vicki

    Equipment

    • 20cm (8") square baking tin.

    Ingredients

    Metric - US Customary
    • 200 g unsalted butter
    • 200 g dark chocolate, also known as plain or semi-sweet chocolate
    • 3 eggs, lightly beaten
    • 250 g white sugar
    • 1 teaspoon vanilla extract
    • 125 g plain flour, sifted
    • pinch of salt
    • 125 g peanut butter
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    Instructions

    • Preheat the oven to 160°C fan / 180°C / 350°F. Line a 20cm (8") square baking tin with baking/parchment paper.
    • Melt the chocolate and butter in a medium-sized saucepan over low heat. Stir regularly to combine, then set aside to cool for 5 minutes.
    • In a large mixing bowl, gently whisk the eggs and sugar together. Add the chocolate-butter mixture and vanilla extract, and whisk to combine. Lastly, add the flour and pinch of salt and mix until just combined. Pour the batter into the baking tin.
    • Melt the peanut butter in the microwave for a minute until runny, then pour it all over the top of the chocolate batter. Use the tip of a knife or a skewer to swirl it into the batter. (see the photo in the recipe post)
    • Bake in the oven for 40-50 minutes until the top has set and a toothpick inserted into the middle comes out clean.
    • Leave the brownie to cool in the tin completely, then turn out and cut it into 16 squares.

    Recipe Notes

    Storage: Store the Peanut Butter Brownies in an airtight container in a cool pantry or the refrigerator.
    To Freeze: Wrap the Peanut Butter Brownies well and freeze them for up to 3 months.

    Nutrition

    Calories: 266kcal | Carbohydrates: 27g | Protein: 3g | Fat: 16g | Saturated Fat: 10g | Trans Fat: 1g | Cholesterol: 58mg | Sodium: 16mg | Potassium: 113mg | Fiber: 2g | Sugar: 19g | Vitamin A: 362IU | Calcium: 18mg | Iron: 2mg
    Did you make this recipe?Tag me on instagram @easy.deliciousness

    Nutrition: The nutrition information is a rough estimate calculated with an online nutrition calculator.

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    HI THERE!

    I'm Vicki - an English Mum living in Australia. Here you will find plenty of tasty recipes which are family-approved.

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