Three ingredients. That’s literally all you need for these 3 ingredient peanut butter cookies. I discovered this recipe one panicked Sunday afternoon when I’d promised dessert for a friend’s visit and had almost nothing in my pantry. Peanut butter, brown sugar, one egg. Done. I couldn’t believe it worked so well the first time. Now I’ve made these dozens of times and they never disappoint. They’re naturally gluten free, ready in just 17 minutes total, and taste like a real homemade cookie. No flour, no fuss, no stress.
Why You Will Love These 3 Ingredient Peanut Butter Cookies
Trust me, once you make these, they’ll become your go-to emergency dessert. Here’s why they’re so hard not to love:
- Just 3 ingredients you probably already have in your pantry right now.
- Only 10 minutes of prep and 7 minutes in the oven. Your cookies are done before you know it.
- Naturally gluten free, no substitutions needed.
- No flour at all, which means one less thing to measure.
- Kids absolutely love making these alongside you.
- The whole recipe uses basic pantry staples, so no special grocery run required.
Equipment You Need
Good news: you don’t need anything fancy here. Just the basics:
- Mixing bowl
- Electric mixer – a hand mixer works perfectly fine
- Baking sheet
- Parchment paper – this is important since these cookies have no flour and will stick without it
- Fork – for making that classic criss-cross pattern
- Wire cooling rack – lets air circulate so your cookies firm up properly
Ingredients for 3 Ingredient Peanut Butter Cookies
I love that this list is so short I can memorize it. Here’s everything you need:
- 1 cup smooth peanut butter
- 1 cup packed light brown sugar
- 1 large egg
All measurements are level unless I say otherwise. Smooth peanut butter is key here because it blends evenly and gives the cookies that soft, consistent texture. Chunky just doesn’t behave the same way in a flourless dough. And when I say packed brown sugar, I mean really press it firmly into your measuring cup. That extra density matters for the right sweetness and chew.
Ingredient Notes and Substitutions
A few things worth knowing before you start mixing:
- Smooth peanut butter gives you a uniform dough that holds together well. Chunky peanut butter can make the dough crumbly and harder to roll into neat balls.
- Natural peanut butter can work, but watch out for the oily separation. Stir it really well first. The dough may be slightly looser, so pop it in the fridge for 15 minutes before rolling.
- Dark brown sugar can replace light brown sugar if that’s what you have. Your cookies will just have a slightly deeper, more molasses-forward flavor. Still delicious.
- For a vegan option, try a flax egg. Mix 1 tablespoon of ground flaxseed with 3 tablespoons of water and let it sit for 5 minutes until it gets thick and gel-like. It binds the dough well, though the cookies may be a little softer.
How to Make 3 Ingredient Peanut Butter Cookies
This is honestly one of the easiest baking projects you’ll ever tackle. Here’s exactly how I do it:
- Preheat your oven to 350F. Get that going first so it’s fully heated and ready when your dough is.
- Add 1 cup smooth peanut butter, 1 cup packed light brown sugar, and 1 large egg into a mixing bowl.
- Use an electric mixer to cream everything together until the dough is smooth and well combined. It comes together faster than you’d expect.
- Line your baking sheet with parchment paper. This is non-negotiable with flourless cookies. They will stick without it.
- Roll the dough into balls about 1 inch in diameter. Try to keep them as uniform as possible.
- Place them on the baking sheet with 1.5 to 2 inches of space between each one. They do spread a little.
- Press down on each ball with a fork to flatten it slightly. Then rotate 90 degrees and press again to make that classic criss-cross pattern.
- Bake for 6 to 7 minutes. You’re looking for just a hint of browning around the bottom edges. That’s your cue.
- Pull the pan out and leave the cookies right there on it for 5 full minutes. Don’t rush this part.
- After 5 minutes, transfer them to a wire rack to finish cooling completely.
I have to warn you, when these come out of the oven they look totally underdone. Soft, almost fragile. Don’t panic and don’t put them back in. They firm up beautifully as they cool. Trust the process.
Tips for Perfect 3 Ingredient Peanut Butter Cookies
A few little things that make a real difference:
- Don’t overbake. Seriously, pull them out when the edges are just barely starting to color. They’ll keep setting up on the hot pan and then again on the rack.
- Use a room temperature egg. It blends into the peanut butter and sugar so much more smoothly than a cold one straight from the fridge.
- Pack that brown sugar firmly into your measuring cup. A loosely measured cup will throw off the whole balance of the dough.
- Keep your dough balls the same size. Uneven balls mean some cookies overbake while others are still underdone. A cookie scoop helps a lot here.
- Want them chewier? Add 1 minute to your bake time. Want them a little crispier? Add 2 minutes. Just watch them closely either way.
Variations to Try with 3 Ingredient Peanut Butter Cookies
Once you’ve nailed the base recipe, it’s so fun to play around with it. Here are some of my favorite ways to mix things up:
- Stir in a handful of chocolate chips before rolling the dough into balls. Chocolate and peanut butter is always a good idea.
- Press a chocolate kiss into the center of each cookie right after they come out of the oven. They’ll melt slightly and look gorgeous.
- Swap the peanut butter for almond butter if you need a nut-free alternative or just want a different flavor.
- Sprinkle a tiny pinch of flaky sea salt on top before baking. It really brings out the richness of the peanut butter.
- Mix in a teaspoon of vanilla for a slightly warmer, more rounded flavor.
Serving Suggestions
These cookies are honestly great on their own, but here are a few ways to make them even better:
- A cold glass of milk is the classic pairing. You really can’t go wrong.
- Sandwich a scoop of vanilla ice cream between two cookies for an easy dessert.
- Serve them alongside your morning coffee or afternoon tea. They’re just sweet enough.
- Add them to a cookie platter for gatherings. They always disappear fast.
How to Store 3 Ingredient Peanut Butter Cookies
These cookies keep really well, which is great news if you manage not to eat them all in one sitting.
- Store them in an airtight container at room temperature and they’ll stay fresh for up to 5 days.
- Pop them in the fridge if you want them to last a little longer, up to a week. They actually taste amazing cold.
- You can freeze the baked cookies for up to 3 months. Just layer them between sheets of parchment paper in a freezer-safe container.
- Raw dough balls freeze beautifully too. Freeze them on a baking sheet first, then transfer to a bag. Bake straight from frozen, just add 1-2 minutes to the bake time.
Nutritional Information for 3 Ingredient Peanut Butter Cookies
Here’s a rough breakdown per cookie based on this recipe. Keep in mind these are estimates, and your actual numbers may vary a little depending on the specific brands you use.
- Calories: 100
- Fat: 5g (Saturated Fat: 1g, Unsaturated Fat: 4g, Trans Fat: 0g)
- Carbohydrates: 12g
- Sugar: 8g
- Fiber: 1g
- Protein: 3g
- Sodium: 70mg
- Cholesterol: 20mg
Frequently Asked Questions About 3 Ingredient Peanut Butter Cookies
Are 3 ingredient peanut butter cookies gluten free?
Yes! There’s no flour in this recipe at all, so these easy cookies are naturally gluten free. Just double-check the label on your peanut butter to make sure it’s processed in a gluten-free facility if you have a serious sensitivity.
Why are my 3 ingredient peanut butter cookies falling apart?
This usually happens if you try to move them too soon. Let them sit on the pan for the full 5 minutes after baking. They firm up a lot as they cool. Skipping that step is the most common reason these peanut butter cookies crumble.
Can you freeze 3 ingredient peanut butter cookie dough?
Absolutely. Roll the dough into balls, freeze them on a baking sheet, then transfer to a freezer bag. They’ll keep for up to 3 months. Bake straight from frozen and add a minute or two to the bake time.
How do you know when 3 ingredient peanut butter cookies are done baking?
Look for slight browning right at the bottom edges. The tops will still look soft and underdone. That’s totally fine. Trust the process and let them cool on the pan.
Can you make these cookies without sugar?
The brown sugar is really essential here. It binds everything together and gives the cookies structure. I wouldn’t skip it or the texture just won’t work.
Did You Make These 3 Ingredient Peanut Butter Cookies?
I’d love to hear how yours turned out! Drop a comment below and let me know. If you tried the recipe, please leave a star rating too. It really helps other readers find it. And if you snapped a photo, share it on social media and tag me. Seeing your cookie wins seriously makes my day.
Print
3 Ingredient Peanut Butter Cookies Ready in 17 Minutes
- Total Time: 17 minutes
- Yield: 12 cookies 1x
- Diet: Gluten Free
Description
Simple and delicious 3 ingredient peanut butter cookies.
Ingredients
- 1 cup smooth peanut butter
- 1 cup light brown sugar
- 1 large egg
Instructions
- Preheat oven to 350F.
- Dump peanut butter, brown sugar and egg into a mixing bowl.
- Use an electric mixer to cream the ingredients together until smooth.
- Line a baking sheet with parchment paper.
- Roll the cookie dough into balls of approximately 1 inch in diameter and place them on the parchment lined baking sheet.
- Leave 1.5 to 2 inches between the balls.
- Press down on the cookie dough balls with a fork to flatten them.
- Press down a second time at a 90 degree angle to make a criss-cross pattern on the cookies.
- Place the baking sheet in the oven and bake the cookies until they are just starting to brown slightly around the bottom edges, 6 – 7 minutes.
- Remove the baking sheet from the oven and leave the cookies to cool on the pan for 5 minutes.
- After 5 minutes, transfer the cookies to wire racks to finish cooling.
- Serve and enjoy!
Notes
- Store cookies in an airtight container.
- Use creamy peanut butter for best results.
- Adjust baking time for desired cookie texture.
- Prep Time: 10 minutes
- Cook Time: 7 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 cookie
- Calories: 100
- Sugar: 8g
- Sodium: 70mg
- Fat: 5g
- Saturated Fat: 1g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 12g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 20mg