The Best Peanut Butter Bars Recipe

The Best Peanut Butter Bars Recipe
The Best Peanut Butter Bars Recipe

Satisfy your cravings with our delectable Peanut Butter Bars. This delightful treat combines the rich, nutty flavour of peanut butter with a luscious, buttery base, creating a harmonious marriage of textures and tastes. Each bite offers a perfect balance of creamy and crumbly, making these bars an irresistible delight for peanut butter enthusiasts. Whether enjoyed as a snack or a dessert, these bars are bound to become a favourite in your repertoire. Get ready to embark on a journey of nutty, buttery bliss!

How To Make This Recipe


For the Base:

  • 1 cup all-purpose flour
  • 1/2 cup unsalted butter, softened
  • 1/4 cup granulated sugar
  • 1/2 cup brown sugar, packed

For the Peanut Butter Filling:

  • 1 cup smooth peanut butter
  • 1/2 cup powdered sugar
  • 1/4 cup unsalted butter, softened
  • 1 teaspoon vanilla extract

For the Chocolate Topping:

  • 1 cup chocolate chips
  • 2 tablespoons unsalted butter


Making the Base:

  1. Preheat Oven:
    • Preheat your oven to 180°C (350°F) and grease a square baking dish.
  2. Combine Ingredients:
    • In a mixing bowl, combine the flour, softened butter, granulated sugar, and brown sugar. Mix until a crumbly dough forms.
  3. Press into Dish:
    • Press the mixture firmly into the bottom of the greased baking dish to form an even layer.
  4. Bake:
    • Place the dish in the preheated oven and bake for about 15-18 minutes or until the edges are lightly golden. Remove and let it cool.

Preparing the Peanut Butter Filling:

  1. Beat Ingredients:
    • In a separate bowl, beat together the peanut butter, powdered sugar, softened butter, and vanilla extract until well combined and smooth.
  2. Spread over the Base:
    • Spread the peanut butter mixture evenly over the cooled base layer.

Making the Chocolate Topping:

  1. Melt Chocolate and Butter:
    • In a microwave-safe bowl, combine the chocolate chips and butter. Microwave in short intervals, stirring in between, until fully melted and smooth.
  2. Pour over Peanut Butter Layer:
    • Pour the melted chocolate mixture over the peanut butter layer and spread it out evenly.
  3. Chill:
    • Place the dish in the refrigerator to allow the chocolate to set, usually for about 1-2 hours.

Cutting and Serving:

  1. Slice into Bars:
    • Once the chocolate has set, use a sharp knife to cut the chilled mixture into bars.
  2. Serve:
    • Serve the Peanut Butter Bars and enjoy this delightful treat!

Tips Of Recipe

  1. Use Smooth Peanut Butter: Smooth peanut butter works best for a creamy and uniform filling.
  2. Soften Butter Properly: Ensure that the butter is softened at room temperature. This helps in achieving a smooth and creamy texture for both the base and the filling.
  3. Press Base Firmly: When pressing the base mixture into the baking dish, apply even pressure to create a solid foundation for the bars.
  4. Cool Base Before Adding Filling: Allow the base layer to cool completely before spreading the peanut butter filling. This prevents the filling from melting into the base.
  5. Use Good-Quality Chocolate: If possible, opt for high-quality chocolate chips for a smooth and rich chocolate topping.
  6. Refrigerate for Proper Setting: Make sure to refrigerate the bars after adding the chocolate topping. This ensures that the chocolate sets properly.
  7. Line the Baking Dish: Consider lining the baking dish with parchment paper for easy removal and cutting of the bars.
  8. Customize with Toppings: Feel free to add a sprinkle of chopped peanuts or a drizzle of melted peanut butter on top for extra texture and flavour.
  9. Store in an Airtight Container: Store any leftover bars in an airtight container to maintain their freshness.
  10. Allow Bars to Come to Room Temperature: Before serving, let the bars sit at room temperature for a few minutes. This makes them easier to cut and enhances the flavour.
  11. Experiment with Nut Butters: You can try using different nut or seed butters for a variation on the classic peanut butter flavour.
  12. Share and Enjoy: These bars are perfect for sharing at gatherings or as a delightful treat for yourself. They also make wonderful gifts!

Frequently Asked Questions

  1. Can I use crunchy peanut butter instead of smooth?
    • Yes, you can use crunchy peanut butter if you prefer some texture in the filling. It will add a delightful crunch to the bars.
  2. Can I substitute margarine for butter in the base?
    • While it’s possible to use margarine, butter provides a richer flavour. If you choose to substitute, ensure it’s suitable for baking.
  3. How long do Peanut Butter Bars last?
    • When stored in an airtight container in the refrigerator, Peanut Butter Bars can last up to a week. For longer storage, consider freezing.
  4. Can I freeze Peanut Butter Bars?
    • Yes, you can freeze these bars. Wrap them tightly in plastic wrap and place them in an airtight container before freezing for up to two months.
  5. How do I prevent the chocolate from cracking when cutting the bars?
    • Allow the bars to come to room temperature for a few minutes before cutting. Using a sharp knife and cutting in one swift motion can also help prevent cracking.
  6. Can I add additional toppings like chopped nuts or coconut?
    • Absolutely! You can customize these bars with toppings like chopped peanuts, shredded coconut, or even a drizzle of melted chocolate for extra flair.
  7. Is it possible to make these bars gluten-free?
    • Yes, you can use a gluten-free flour blend for the base to make these bars suitable for those with gluten sensitivities.
  8. Can I use a different type of nut butter?
    • Yes, you can experiment with other nut or seed butters like almond butter or sunflower seed butter for a different flavour profile.
  9. What’s the best way to store leftover Peanut Butter Bars?
    • Store them in an airtight container in the refrigerator for optimal freshness. This will keep them from becoming too soft.
  10. Can I omit the chocolate topping?
    • While the chocolate topping adds a delightful layer, you can certainly omit it if you prefer a simpler, nuttier flavour.


  1. A Scoop of Vanilla Ice Cream: Serve each Peanut Butter Bar with a scoop of creamy vanilla ice cream for a classic and indulgent treat.
  2. Drizzle with Caramel Sauce: Add a drizzle of rich caramel sauce over the bars for an extra layer of sweetness and flavour.
  3. Sprinkle with Chopped Nuts: Top the bars with a sprinkle of chopped peanuts, almonds, or cashews for added crunch and nutty goodness.
  4. Dust with Icing Sugar: Lightly dust the bars with icing sugar for a touch of elegance and a hint of extra sweetness.
  5. Chocolate Ganache Drizzle: Drizzle a luscious chocolate ganache over the bars for an extra decadent and glossy finish.
  6. Pair with a Hot Beverage: Enjoy your Peanut Butter Bars with a cup of hot coffee, tea, or hot chocolate for a comforting and delicious combination.
  7. Fresh Berries on the Side: Serve the bars with a side of fresh berries like strawberries or raspberries for a refreshing contrast.
  8. Garnish with Shredded Coconut: Sprinkle some shredded coconut over the bars for a tropical twist and an extra layer of texture.
  9. Dip in Melted Chocolate: Dip one end of each bar into melted chocolate for a fun and delightful visual appeal.
  10. Add a Dollop of Whipped Cream: Top each bar with a dollop of freshly whipped cream for a light and airy contrast to the rich peanut butter filling.
  11. Serve with a Glass of Milk: Enjoy the bars with a cold glass of milk for a classic and comforting combination.
  12. Create a Sundae: Turn your Peanut Butter Bars into a sundae by layering them with ice cream, chocolate sauce, and whipped cream.

How to Store

  1. Allow to Cool: Ensure the bars have completely cooled to room temperature after baking.
  2. Cut into Portions: If you haven’t already, cut the bars into individual portions. This makes it easier to store and serve later.
  3. Use an Airtight Container: Place the bars in an airtight container. This helps to prevent exposure to air and keeps them from becoming stale.
  4. Separate Layers with Parchment Paper: If you’re stacking the bars in the container, consider placing a sheet of parchment paper between each layer. This prevents them from sticking together.
  5. Refrigerate for Longer Shelf Life: While Peanut Butter Bars can be stored at room temperature for a day or two, for longer storage, it’s best to keep them in the refrigerator. They’ll stay fresh for up to a week.
  6. Label and Date: If you plan to keep them for a while, label the container with the contents and the date they were made. This helps you keep track of their freshness.
  7. Avoid Moisture: Keep the container away from areas of high humidity or moisture, as it can affect the texture of the bars.
  8. Avoid Odorous Foods: Store the container away from strongly scented foods to prevent the bars from absorbing unwanted flavours.
  9. Check for Freshness: Before serving leftover bars, check for any signs of spoilage such as an off-smell, unusual texture, or change in appearance. If in doubt, err on the side of caution and discard.
  10. Serve at Room Temperature: If you’ve stored the bars in the refrigerator, allow them to come to room temperature for a few minutes before serving. This enhances their flavour and texture.

How to Freeze

  1. Allow Bars to Cool: Let the bars cool completely to room temperature after baking. This helps maintain their texture and flavour.
  2. Cut into Portions: If you haven’t already, cut the bars into individual portions. This makes it easier to thaw and enjoy later.
  3. Wrap Each Bar Individually: Wrap each bar tightly in plastic wrap or aluminium foil. This prevents freezer burn and helps maintain their freshness.
  4. Double Wrap (Optional): For added protection, you can double-wrap the bars by placing the wrapped bars in a resealable freezer bag.
  5. Label and Date: Use a marker to label the wrapped bars with the contents and the date of freezing. This helps you keep track of storage times.
  6. Choose a Suitable Freezer Spot: Find a spot in your freezer where the bars won’t be squished or jostled. Lay them flat to avoid any potential damage.
  7. Freeze for up to Three Months: The Peanut Butter Bars can be frozen for up to three months. Beyond this time, the quality may start to decline.
  8. Thaw in the Refrigerator: When you’re ready to enjoy a bar, transfer it from the freezer to the refrigerator. Let it thaw slowly and completely, which can take several hours or overnight.
  9. Serve at Room Temperature: Once thawed, allow the bar to come to room temperature for a few minutes before serving. This enhances their flavour and texture.
  10. Avoid Re-Freezing: Once a bar has been thawed, it’s best not to refreeze it, as this can affect the texture and taste.


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