Let's be honest. Sometimes you just need a cookie. Not a project, not a culinary masterpiece—just a warm, chewy, peanut-buttery treat that comes together before your oven even finishes preheating. That's what this recipe is. Forget chilling dough, sifting flour, or creaming butter. This is the ultimate easy peanut butter cookie recipe. It's the one I've made a hundred times, for last-minute guests, school bake sales (when I forgot until the night before), and those 9 PM sugar cravings. It never fails.
What You'll Find in This Guide
Why This Ridiculously Simple Recipe Actually Works
You look at the ingredient list—peanut butter, sugar, egg—and think, "That can't be right." I thought the same thing the first time. Where's the flour? The butter? The baking soda? The magic lies in the peanut butter itself.
Conventional creamy peanut butter (like Jif or Skippy) is already a perfect fat-and-protein base. It contains stabilizers and added sugars that, when combined with the egg as a binder and the extra sugar for sweetness and structure, create a dough that bakes into a cookie with a fantastic fudgy-chew. The egg provides just enough lift and structure without making them cakey. It's a brilliant bit of kitchen chemistry that feels like a secret hack.
This recipe is the definition of a no-chill peanut butter cookie. The dough is stiff and manageable right away. No waiting. You mix, you scoop, you bake. In under 20 minutes total, you have a batch of deeply satisfying homemade cookies. It's the perfect recipe for beginners, impatient bakers, or anyone with a nearly-empty pantry.
The 3-Ingredient Breakdown: What You Need & Why
Precision matters, even with only three things. Here’s exactly what to grab:
| Ingredient | Quantity | Specifics & Why It Matters |
|---|---|---|
| Creamy Peanut Butter | 1 cup (250g) | This is non-negotiable. Use standard shelf-stable peanut butter like Jif or Skippy Creamy. Do NOT use natural or "just peanuts" style for this recipe—the oil separation will give you a greasy, crumbly mess. The stabilizers are key. |
| Granulated Sugar | 1 cup (200g) | White sugar gives a crisp edge and sweetness. For a deeper flavor and even chewier texture, I often use 1/2 cup white + 1/2 cup light brown sugar. The brown sugar's molasses adds moisture and a caramel note. |
| Large Egg | 1 | The glue. It binds everything, provides structure, and adds a touch of lift. Make sure it's at room temperature for easier mixing. |
That's it. Really. You'll also need a pinch of salt if your peanut butter isn't salted, but most major brands are.
How to Make Easy 3-Ingredient Peanut Butter Cookies
Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper. No need to grease it.
1. Mix the Dough
In a medium bowl, combine all three ingredients. Use a sturdy spoon or spatula at first—it'll be thick. Once it starts coming together, I switch to using my clean hands to really knead it into a uniform, smooth dough. It should feel like play-doh, not sticky. If it's too crumbly, your peanut butter might have been a bit scant; add another tablespoon. Too sticky? A tiny bit more sugar. This hands-on method gives you the best feel for the dough's consistency.
2. Shape the Cookies
Roll the dough into 1-inch balls (about 1 tablespoon each). Place them on the prepared sheet, leaving about 2 inches between them. They don't spread a huge amount, but they need space.
Now, the classic fork criss-cross. Dip the tines of a fork in a little extra sugar (this prevents sticking) and gently press down on each ball, then press again at a 90-degree angle to create the grid pattern. This also flattens them to the perfect thickness for even baking.
3. Bake to Perfection
Bake for 10-12 minutes. Here's the expert trick: DO NOT over-bake. They will look soft and slightly puffy in the center when you take them out. The edges will be just set. They firm up dramatically as they cool. If you wait for them to look "done" in the oven, they'll be dry and crumbly once cooled.
Let them cool on the baking sheet for 5 full minutes—this is part of the cooking process. Then transfer them to a wire rack to cool completely. The texture transforms from soft to that perfect, dense chew.
Pro Tips & Common Mistakes to Avoid
After making these for years, here are the nuances most recipes don't tell you:
Measure the Peanut Butter Correctly: Pack it firmly into the measuring cup and level it off. A scant cup throws off the fat-to-sugar ratio.
The Mixing Secret: Don't use a mixer. Over-mixing with electric beaters can incorporate too much air, leading to puffier, more fragile cookies. The hand-mixing method gives you control and the ideal dense texture.
Oven Hotspots: Know your oven. If it runs hot, check at 9 minutes. I once burned a batch because I didn't realize my new oven's "350°F" was more like 375°F. An oven thermometer is a baker's best friend.
Simple Variations & Flavor Upgrades
The base recipe is perfect, but it's also a fantastic canvas.
Chocolate Chip Peanut Butter Cookies: Fold in 3/4 cup of semi-sweet chocolate chips after mixing the dough.
Peanut Butter Blossoms: Shape and bake as usual. Immediately after taking them from the oven, press a Hershey's Kiss into the center of each warm cookie.
Salty-Sweet: Before baking, sprinkle each cookie with a few grains of flaky sea salt. It elevates the flavor incredibly.
For a 4-Ingredient Version: Add 1 teaspoon of pure vanilla extract to the dough. It rounds out the flavors beautifully.
Storing, Freezing & Your Questions Answered
Store cooled cookies in an airtight container at room temperature for up to 5 days. They also freeze beautifully for up to 3 months. You can freeze the baked cookies or, even better, freeze the shaped dough balls on a tray before transferring to a bag. Bake from frozen, adding 1-2 minutes to the baking time.
Now, let's tackle the specific questions you might have.


So there you have it. The simplest, most reliable path to homemade peanut butter cookies. It's less of a recipe and more of a kitchen lifesaver. Go make a batch. I promise, the hardest part will be waiting for them to cool enough to eat.