I have a soft spot for recipes that prove you don't need a long ingredient list to make something seriously delicious. And these 3-ingredient peanut butter blondies are exactly that kind of recipe!

They are rich, chewy, wonderfully peanut-buttery, and so easy to make. No flour, no complicated mixing, and no long list of pantry ingredients. Just creamy peanut butter, brown sugar, and eggs come together to create soft-centered blondies with lightly crackled tops.

This is the sort of recipe I love keeping in my back pocket for bake sales, family gatherings, last-minute desserts, or those afternoons when everyone suddenly wants something sweet.

And honestly? The whole pan has a habit of disappearing remarkably quickly!

Want more simple dessert recipes like this? Subscribe by email and get easy, comforting recipes delivered straight to your inbox.

Why You'll Love These 3-Ingredient Peanut Butter Blondies

There is so much to love about these little bars.

• Only three main ingredients
• No flour required
• Minimal preparation
• One mixing bowl
• Rich peanut butter flavor
• Soft, chewy texture
• Crisp, lightly crackled top
• Easy to customize
• Perfect for bake sales and sharing
• Delicious warm or completely cooled

They're also wonderfully forgiving. You can bake them slightly less for a softer, fudgier center or a little longer for firmer squares.

What Do Peanut Butter Blondies Taste Like?

Think of these as a cross between a chewy brownie and a classic peanut butter cookie.

The brown sugar gives them a deep, caramel-like sweetness, while peanut butter provides that unmistakable nutty flavor. The eggs help bind everything together and give the blondies their soft, chewy structure.

They're rich enough that a small square goes a long way.

Serve one slightly warm with a cold glass of milk and you've got a seriously satisfying dessert.

Ingredients You'll Need

The Three Essentials

1 cup creamy peanut butter
Regular creamy peanut butter works especially well because it gives the batter a consistent texture.

1 cup packed brown sugar
Brown sugar adds sweetness and helps create that chewy, rich texture.

2 large eggs
Eggs bind the ingredients together and help the blondies set as they bake.

That's it!

Three ingredients. One bowl. One baking dish.

Tools You'll Need

You don't need any fancy equipment.

• 8-inch baking dish
• Medium mixing bowl
• Mixing spoon or spatula
• Measuring cups
• Parchment paper, optional
• Knife for slicing

Ingredient Substitutions and Add-Ins

The basic recipe is intentionally simple, but there are a few ways to make it your own.

Peanut Butter

Creamy conventional peanut butter is the most reliable option.

Natural peanut butter can work, but if yours is very oily or has separated significantly, the finished blondies may have a different texture.

Brown Sugar

Light or dark brown sugar can be used depending on how deep you want the flavor to be. Darker brown sugar will generally give the blondies a more pronounced molasses-like character.

Chocolate Chips

Fold a handful of chocolate chips into the batter for a peanut butter-and-chocolate combination.

Honestly, you can't go wrong there!

Chopped Peanuts

Add chopped roasted peanuts for extra crunch and even more peanut flavor.

Sea Salt

A tiny pinch of flaky sea salt on top creates a lovely sweet-and-salty contrast.

How to Make 3-Ingredient Peanut Butter Blondies