3-Ingredient Peanut Butter Blondies

Rich, fudgy, and packed with deep nutty flavor, these 3-Ingredient Peanut Butter Blondies are a quick-fix dessert lover’s dream. Creamy peanut butter, sweet brown sugar, and a single egg come together to form a soft, chew-centric bake that yields dense, bakery-quality bars in under twenty minutes.

The magic of this recipe relies on the simple chemistry between peanut butter and brown sugar. Because the natural oils in the peanut butter replace traditional butter or oil, the molasses from the packed brown sugar creates a dense, chewy texture with a shiny, crackly crust on top.

Why You’ll Love This Recipe

Forget about dragging out heavy stand mixers, melting chocolate, or sifting cups of dry ingredients. This minimalist recipe relies on basic kitchen staples and requires less than five minutes of active prep time.

It is an exceptionally fast, budget-friendly treat for last-minute sweet cravings, lunchbox snacks, or casual gatherings.Baking these bars just until set guarantees a fudgy, melt-in-your-mouth middle with rich peanut butter flavor in every bite.

FAQ

Can I Use Natural Peanut Butter For This Recipe?

Natural peanut butter (the type where oil separates at the top) is not recommended. The excess oil can cause the blondies to turn out greasy or separate during baking. Stick to classic emulsified commercial peanut butter.

Can I Use Crunchy Peanut Butter Instead Of Creamy?

Yes! Crunchy peanut butter works great and adds a pleasant, nutty texture throughout the fudgy bars.

Why Did My Blondies Turn Out Dry Or Cakey?

Over-baking is the main cause of dry blondies. Because there is no added flour or leavening, over-exposure to oven heat dries out the natural peanut butter oils. Pull them out as soon as the top sets.

Can I Double This Recipe For A 9×13 Pan?

Yes! Double all the ingredients and bake in a greased 9×13-inch dish at 350°F for 22 to 26 minutes.

3-INGREDIENT PEANUT BUTTER BLONDIES

This 3-Ingredient Peanut Butter Blondies recipe is an easy, chewy, and delicious treat made with just three simple ingredients. Rich in peanut butter flavor with a soft, fudgy texture, these homemade blondies are perfect for satisfying sweet cravings without spending hours in the kitchen. A quick and budget-friendly dessert everyone will love!

Weight Watchers-Friendly Peanut Butter Cookies

Ingredients:

1 cup powdered peanut butter (PB2) instead of regular creamy peanut butter

½ cup packed brown sugar (or sugar substitute)

1 large egg

1 teaspoon vanilla extract (optional)

Note: Using powdered peanut butter and a sugar substitute significantly reduces the calories and Weight Watchers points compared with the original recipe.

If you want, I can also adjust the recipe to make it 5–6 WW points per serving.

How to Make Weight Watchers Peanut Butter Cookies

Preheat the oven to 350°F (175°C).

In a mixing bowl, combine the powdered peanut butter, brown sugar substitute, and egg.

Add vanilla extract if desired.

Mix everything until a soft cookie dough forms.

Line a baking sheet with parchment paper.

Roll the dough into small balls and place them on the baking sheet.

Use a fork to gently press each cookie down, creating a crisscross pattern.

Bake for 8–10 minutes, or until the edges are lightly golden.

Let the cookies cool for 10 minutes before serving.