Rich, Chewy, and Totally Addictive!
If you’re a peanut butter lover, these Peanut Butter Cookie Bars are about to become your new obsession. Soft, chewy, and full of rich, nutty flavor, they’re perfect for a weeknight treat, lunchbox favorite, or anytime you need something comforting with a quick prep time. Plus, that optional peanut butter glaze on top? Game-changer.
🥜 Why You’ll Love These Bars
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Quick and Easy: Mix, press, and bake – no chill time required.
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Incredible Texture: Moist, chewy center with a slight crisp edge.
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Customizable: Add chocolate chips, nuts, or a drizzle of ganache.
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Make-Ahead Friendly: Perfect for meal prep, potlucks, and gifting.
📋 Ingredients You’ll Need
Makes one 8×8-inch pan (about 9–12 bars)
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1 cup peanut butter (creamy or crunchy)
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½ cup unsalted butter, softened
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1 cup brown sugar, packed
Optional (recommended for enhanced flavor):
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1 large egg
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1 teaspoon vanilla extract
Dry ingredients:
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1 cup all-purpose flour
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½ teaspoon baking soda
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¼ teaspoon salt
🍽️ Instructions
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Prep the Pan
Preheat your oven to 350°F (175°C). Line an 8×8-inch baking pan with parchment paper or lightly grease it. -
Mix the Base
In a large bowl, cream together the peanut butter, softened butter, and brown sugar until smooth and fluffy. -
Add Egg & Vanilla (if using)
Mix in the egg and vanilla extract until fully combined. -
Incorporate Dry Ingredients
Gradually stir in the flour, baking soda, and salt. A soft, sticky dough will form. -
Press & Bake
Press the dough evenly into your prepared baking pan.
Bake for 20–25 minutes, or until the edges are golden and the center is set. -
Cool Completely
Let the bars cool fully in the pan before slicing.
✨ Optional Peanut Butter Glaze (Highly Recommended!)
Take your bars over the top with this luscious peanut butter glaze:
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½ cup peanut butter
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2 tablespoons melted butter
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¼ cup powdered sugar
👉 Mix until creamy. Spread over cooled bars and chill for 15 minutes before slicing.
🧁 Tips for Best Results
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Use high-quality peanut butter for best flavor and texture.
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Don’t overbake — they’ll continue to set as they cool.
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Store in an airtight container at room temperature for up to 4 days (or freeze for up to 2 months).
🍫 Make It Your Own
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Fold in chocolate chips or butterscotch morsels before baking.
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Swirl in Nutella or jam for a peanut butter & jelly twist.
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Add a sprinkle of flaky sea salt on top of the glaze.
📦 Perfect for Gifting or Meal Prep
Wrap them in parchment paper and a ribbon for a sweet homemade gift, or pack in lunchboxes for a mid-day mood boost. These bars are freezer-friendly, so don’t hesitate to double the batch!
💬 What’s Your Favorite Way to Eat Peanut Butter?
Leave a comment below and let us know if you tried these bars — and what toppings or add-ins you used! 🥄👇