When a peanut butter craving strikes, you don’t always need a complicated dessert recipe. These 3-ingredient peanut butter blondies are made with just peanut butter, brown sugar, and an egg, making them an easy option for a quick homemade treat.
The bars bake up with lightly set edges and a soft, chewy center. They’re simple enough for an everyday snack, yet delicious enough to serve alongside coffee or as an easy dessert after dinner. No mixer or lengthy ingredient list is needed—just a bowl, a spoon, and a baking pan.
Why You’ll Love These 3-Ingredient Blondies
Only three ingredients: A simple recipe with pantry-friendly basics.
Quick to prepare: The batter comes together in minutes.
Rich peanut butter flavor: Peanut butter is the star of every bite.
Easy to customize: Add chocolate chips or chopped peanuts if you want a little extra texture.
Perfect for sharing: Slice the finished blondies into squares for snacks, dessert plates, or lunchbox treats.
Ingredients You’ll Need
This recipe makes a small batch of blondies in an 8-inch square pan.
1 cup creamy peanut butter – Choose a thick, conventional peanut butter for a consistent batter.
1 cup packed light brown sugar – Adds sweetness and helps give the blondies a soft texture.
1 large egg – Binds the ingredients together.
For the simplest result, use regular creamy peanut butter rather than a natural variety with a lot of separated oil. Natural peanut butter may work, but the texture can vary.
How to Make 3-Ingredient Peanut Butter Blondies
Step 1: Prepare the Oven and Pan
Preheat your oven to 350°F (175°C).
Line an 8-inch square baking pan with parchment paper, leaving a little overhang on two sides. This makes it easier to lift the blondies out once they’ve cooled.
Step 2: Mix the Ingredients
Place the peanut butter, brown sugar, and egg in a medium mixing bowl.
Stir until everything is evenly combined. The batter will be thick and sticky rather than pourable, so use a sturdy spoon or spatula to mix it thoroughly.
Step 3: Spread the Batter
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