3 Ingredient Peanut Butter Cookies (Easy & Chewy)

These 3 ingredient peanut butter cookies are the kind of recipe you memorize after making once and never let go of. No flour, no butter, no mixer, no chilling — just a glass bowl, a wooden spoon, and about fifteen minutes between you and a stack of warm, chewy cookies with crackly sugar-crusted edges and soft peanut-butter centers.

I came back to this recipe in a moment of pure pantry desperation: rainy Sunday, no butter softened, a kid asking for cookies, and a half-full jar of Jif staring at me. What came out of the oven was so unreasonably good that I started making them on purpose. They taste like the classic peanut butter cookies your grandmother pressed with a fork, but somehow even more peanut-buttery, because there's no flour to mute the flavor.

If you've been hunting for easy peanut butter cookies that don't require a single specialty ingredient, this is your forever recipe. Naturally flourless peanut butter cookies, naturally gluten-free, and endlessly customizable.

The 3 Ingredients You Need

The whole magic of three ingredient peanut butter cookies is how little they ask of you. One cup of creamy peanut butter, one cup of granulated sugar, and one large egg. That's the entire grocery list, and odds are good you already own all three.

Choosing the best peanut butter

For the most reliably chewy texture, reach for a standard creamy peanut butter — Jif, Skippy, or a thick no-stir natural brand. Very oily, drippy natural peanut butters can cause the cookies to spread thin and crumble. If yours separates with a pool of oil on top, stir it thoroughly first and consider chilling the dough for ten minutes before scooping.

Sugar: granulated vs. brown

Granulated sugar is the classic choice and gives you those signature crisp, sparkly edges. Want a deeper, more caramelly cookie? Swap in light brown sugar for half the amount — the molasses brings a chewier bite and a slightly softer center. I usually do half and half when I want the cookie to feel a little more bakery-style.

The role of the egg

The egg is the only binder in the entire recipe, which is why it punches above its weight. It holds the dough together, gives lift, and helps the cookies set into that tender-chewy interior. Use a large egg straight from the fridge — no need to bring it to room temperature.

How to Make 3 Ingredient Peanut Butter Cookies

The method is almost embarrassingly simple. Stir, scoop, press, bake. The full step-by-step is in the recipe card below, but here's the rhythm of it so you know what to expect.

You'll start by stirring the peanut butter, sugar, and egg in a single bowl until the mixture turns glossy and pulls together into a thick, slightly tacky dough. It looks loose at first — keep stirring, and it tightens up within a minute. No mixer required (and honestly, a wooden spoon does a better job here than electric beaters).

Scoop tablespoon-sized balls, roll each one in a little extra granulated sugar — this is my favorite trick for crisp, glistening edges — and arrange on a parchment-lined sheet pan. Then comes the most satisfying part: pressing the classic crosshatch pattern with the back of a fork.

Bake at 350°F for 9–10 minutes. They'll look slightly underdone in the center when you pull them — that's exactly right. They finish setting on the hot pan as they cool, which is what gives you that signature chewy bite.

No-Bake Variation: 3 Ingredient No Bake Peanut Butter Cookies

If your kitchen is too hot to turn on the oven — or you genuinely don't want to wait — there's a stovetop version that hits the same nostalgic note. These no bake peanut butter cookies swap the egg and sugar for honey (or maple syrup) and quick oats, with the peanut butter still doing the heavy lifting.

Swap-ins for a stovetop version

For 3 ingredient no bake cookies, gently warm 1/2 cup peanut butter with 1/3 cup honey in a small saucepan until smooth, then stir in 1 1/2 cups quick oats off the heat. Scoop onto parchment and press flat. That's it — no eggs, no oven, just stir-and-set.

Setting time and texture tips

Pop the tray in the fridge for 20–30 minutes to firm up. The texture is denser and a little more granola-bar-like than the baked version, with a glossy finish. They keep beautifully in the fridge and travel well, which makes them my go-to summer cookie.

What Makes These Cookies So Chewy

Without flour to soak up moisture, the peanut butter's natural oils and the egg's proteins do all the structural work. As the cookies bake, the sugar dissolves into the fats, then recrystallizes on the edges as they cool — that's the science behind the crackly tops and tender middles. Pulling them at 9–10 minutes (when the edges are just golden but the centers still look soft) is the single biggest factor in nailing that texture.

Serving Suggestions

Warm from the pan, with a tall glass of cold milk, is the platonic ideal. But these cookies are surprisingly versatile beyond that. Sandwich two around a scoop of vanilla ice cream for instant ice cream sandwiches. Crumble them over Greek yogurt with banana slices for a lazy parfait. Drizzle melted dark chocolate across the tops for a slightly fancier dessert plate.

They also pack beautifully into lunchboxes, holiday cookie tins, and care packages — the dense, chewy texture means they hold up to a few days of travel without going stale or crumbling.

More 3 Ingredient Cookies and Easy Treats to Try

Once you fall down the 3 ingredient cookies rabbit hole, it's hard to climb back out. The minimalist approach — three pantry items, fifteen minutes, one bowl — works for everything from almond butter cookies to oatmeal-banana drops. If you loved how forgiving this dough is, you'll love how many tiny tweaks turn it into something completely new (chocolate chips, chopped peanuts, a sprinkle of flaky salt on top).

Whether you bake them tonight as a last-minute treat or stash a batch in the freezer for next week's coffee break, these 3 ingredient peanut butter cookies have a way of becoming a household standard. Simple, chewy, and exactly as easy as they sound.