Are you looking for a dessert that’s incredibly easy to make, yet delivers on big, comforting flavor? Look no further! These **3-ingredient peanut butter cookies** are a true revelation for any baking enthusiast, or even total beginners. They are wonderfully soft, delightfully chewy, and packed with an intense peanut butter taste that rivals classic recipes, all while requiring significantly less effort and a fraction of the ingredients. Get ready to bake up a batch of pure cookie magic!

This beloved recipe was originally shared in 2018 and has been lovingly updated on August 27, 2020, with new photos and even more helpful tips to ensure your baking success.
Why You’ll Love This 3-Ingredient Peanut Butter Cookie Recipe
Imagine being able to whip up a batch of delicious, homemade cookies with just three pantry staples: peanut butter, sugar, and one egg. It sounds almost too good to be true, but it’s absolutely real! This recipe is a game-changer for anyone short on time, ingredients, or baking experience. These cookies consistently turn out soft, chewy, never greasy, and boast that perfect salty-sweet balance that makes peanut butter treats so irresistible.
While I’ve shared many fantastic peanut butter cookie variations on Just So Tasty – from peanut butter chocolate chip cookies to no-bake peanut butter cookies and oatmeal peanut butter cookies – there are those moments when simplicity is key. When a craving hits and you need a quick, fuss-free solution, this easy 3-ingredient recipe is your go-to. It’s also naturally flourless, making it a wonderful option for those seeking gluten-free treats without any complicated substitutions.
The Magic Behind Just Three Ingredients
The beauty of these cookies lies in the elegant simplicity of their components. Each ingredient plays a crucial role in creating the perfect texture and flavor:
- Peanut Butter: This is the star of the show, providing the rich flavor, essential fats, and much of the structure. It acts as a binder and a source of moisture, eliminating the need for flour or butter.
- Sugar: Beyond sweetness, sugar contributes to the cookie’s tenderness, helps it spread slightly, and gives it those appealing slightly crisp edges while keeping the center soft and chewy.
- Egg: The humble egg is the ultimate binder in this recipe, holding everything together and adding a touch of richness and moisture that prevents the cookies from becoming crumbly.
What You’ll Need:
- 1 cup peanut butter
- ¾ cup sugar
- 1 large egg

How to Make Your Perfect Peanut Butter Cookies (Step-by-Step Guide)
Making these delightful cookies truly couldn’t be simpler. You’ll be amazed at how quickly you can go from craving to warm, fresh-baked goodness.
- Prepare for Baking: Begin by preheating your oven to 350°F (175°C). Line a baking sheet with parchment paper or a silicone baking mat. This prevents sticking and ensures easy cleanup.
- Combine Ingredients: In a medium-sized mixing bowl, add your 1 cup of peanut butter, ¾ cup of sugar, and 1 large egg. You can easily stir these together by hand using a sturdy spoon, whisk, or spatula. If you prefer, an electric mixer (handheld or stand mixer) will make the job even quicker. Mix until all ingredients are well combined and form a smooth, uniform dough. Don’t worry if the mixture looks a little grainy at first; it will smooth out as you continue to stir, and your baked cookies will not be grainy.
- Form the Cookies: Scoop out the dough into approximately 1-tablespoon-sized balls. Roll them between your palms to ensure they are round and even. Place them about 2 inches apart on your prepared baking sheet to allow for slight spreading.
- Create the Classic Look: Take a fork and gently press down on the top of each cookie dough ball, first in one direction and then again perpendicularly, to create the iconic crisscross pattern. This not only gives them a beautiful, traditional appearance but also helps them bake evenly.
- Time to Bake: Pop your cookie sheet into the preheated oven. Bake for 8 to 10 minutes, or until the tops of the cookies look set and are lightly golden around the edges. They might still seem very soft when you first take them out, but they will firm up as they cool.

Expert Tips for the Best 3-Ingredient Peanut Butter Cookies
While this recipe is incredibly forgiving, a few pointers can elevate your cookies from great to absolutely perfect.
Choosing Your Peanut Butter
For consistent results and that classic, smooth texture, I highly recommend using **smooth, classic peanut butter** brands like Skippy, Jif, or Kraft. These types of peanut butter are stabilized, meaning the oil doesn’t separate, which is crucial for baking. Natural peanut butter, which often has separated oil and a thinner consistency, can be a bit more temperamental in baking. If natural peanut butter is all you have, make sure to stir it extremely well until fully incorporated before measuring it for the recipe. **Yes, you can absolutely use crunchy peanut butter** if you love those extra nutty bits!
Sweetness Variations and Sugar Substitutes
The recipe calls for ¾ cup of sugar, but you have some flexibility here. Feel free to use up to 1 cup of sugar if you prefer a sweeter cookie. However, I wouldn’t recommend using less than ¾ cup, as reducing the sugar too much can lead to cookies that spread too thin and lack structure. For a slightly different flavor profile, **white granulated sugar can be substituted with brown sugar** (which will yield a chewier cookie with a hint of caramel) or palm sugar. **Crucially, do NOT substitute the sugar with liquid sweeteners** like honey, agave, or maple syrup; these will drastically alter the cookie’s consistency and cause them to spread excessively thin.
Achieving the Perfect Texture (Troubleshooting)
Sometimes, cookies can behave a little differently depending on factors like humidity, oven accuracy, or even the specific brand of peanut butter. If your cookies tend to spread too thin, a simple trick is to form the dough balls, press them with a fork, and then **place them in the refrigerator for 15-30 minutes before baking**. This helps the fats in the peanut butter solidify, creating a thicker cookie that holds its shape better. I’ve noticed variations myself; for instance, peanut butter varieties can differ slightly in thickness across countries (e.g., between Canada and Australia), which can impact the final cookie consistency. Don’t be afraid to experiment a little to find what works best with your ingredients.
Flavor Boosters and Add-ins
While delicious on their own, these 3-ingredient cookies are a fantastic base for customization. For an extra touch of indulgence, consider gently folding in a handful of chocolate chips or mini chocolate chips into the dough before forming the balls. A pinch of sea salt sprinkled on top right after baking can also beautifully enhance the peanut butter flavor. Or, for a different texture, sprinkle some finely chopped peanuts on top. A tiny splash of vanilla extract (even though it adds a 4th ingredient!) can also boost the flavor profile significantly.
Storage and Make-Ahead Options
These peanut butter cookies are best enjoyed fresh, but they also store wonderfully. Keep them in an airtight container at room temperature for up to 4 days to maintain their soft and chewy texture. If you’d like to prepare them in advance, the unbaked cookie dough balls can be frozen. Simply place them on a parchment-lined tray until solid, then transfer them to a freezer-safe bag for up to 2-3 months. Bake from frozen, adding a minute or two to the baking time.

Frequently Asked Questions (FAQ)
- Are these cookies gluten-free? Yes, since they contain no flour, these cookies are naturally gluten-free, making them a fantastic option for those with gluten sensitivities or preferences.
- Can I use a sugar substitute like Stevia or erythritol? While some sugar substitutes might work, I haven’t specifically tested them. Be aware that non-sugar sweeteners can affect the texture and spread of cookies differently, so results may vary.
- My cookies are too crumbly. What went wrong? This usually happens if the dough is too dry, possibly due to over-baking or using a very dry type of peanut butter. Ensure you don’t over-bake them; the tops should just look set.
- Can I double the recipe? Absolutely! This recipe scales up very easily. Just double all three ingredients accordingly.
Discover More Delicious Peanut Butter Recipes
If you’ve fallen in love with these simple peanut butter cookies, you might enjoy exploring other peanut butter treats from my collection:
- No Bake Peanut Butter Cookies: For when you don’t even want to turn on the oven!
- Peanut Butter Oatmeal Cookies: A heartier, chewy option.
- Peanut Butter Chocolate Chip Cookies: The classic pairing.
- White Chocolate Peanut Butter Cookies: A delightful twist on the classic.
Printable Recipe Card: 3-Ingredient Peanut Butter Cookies
These 3-ingredient peanut butter cookies are soft, chewy, and bursting with rich peanut butter flavor. They are just as delicious as traditional peanut butter cookies, but they require significantly less effort to make, perfect for quick baking!
Rating: 5 out of 5 stars (from 4 votes)
By: Fiona Dowling
Prep time: 5 mins
Cook time: 8-10 mins
Total time: Approximately 20 mins (including cooling)
Servings: 18 cookies
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Equipment
- Cookie tray
- Parchment paper or silicone baking mat
- Medium mixing bowl
- Spoon or electric mixer
- Fork (for pressing)
Ingredients
- 1 cup smooth peanut butter (like Skippy, Jif, or Kraft)
- 1 large egg
- ¾ cup granulated sugar (can use up to 1 cup for sweeter cookies)
Instructions
- Preheat your oven to 350°F (175°C) and line a cookie sheet with parchment paper or a baking mat.
- In a medium bowl, stir together the peanut butter, egg, and sugar until thoroughly combined and smooth. This can be done by hand or with an electric mixer.
- Form the dough into balls, each about 1 tablespoon in size.
- Place the dough balls approximately 2 inches apart on the lined cookie sheets. Gently press the top of each cookie down with a fork to create a crisscross pattern.
- Bake for 8-10 minutes, or until the tops of the cookies appear set and the edges are lightly golden.
- Remove from oven and let cool on the baking sheet for a few minutes before transferring to a wire rack to cool completely.
Notes
- I do not recommend using natural or homemade peanut butter as their consistency can vary too much for this recipe. Smooth, American-style peanut butter (like Skippy, Jif, or Kraft) works perfectly. Crunchy peanut butter is an acceptable substitution if you enjoy the added texture.
- Feel free to increase the sugar to 1 cup for a sweeter cookie. White sugar can be substituted with brown sugar for a richer, more caramel-like flavor, or with palm sugar. Avoid substituting sugar with liquid sweeteners such as honey, agave, or maple syrup, as these will cause the cookies to be too thin and spread excessively.
- If your cookies spread too thin, try chilling the formed dough balls in the refrigerator for 15-30 minutes before baking. The consistency of peanut butter can vary slightly by brand and region, which may affect how much the cookies spread.
- Store the baked cookies in an airtight container at room temperature for up to 4 days to maintain their freshness and chewiness.
- Nutrition information provided is an estimate only, based on one cookie, assuming the recipe yields 18 equal-sized cookies.
Nutrition
Calories: 121kcal, Carbohydrates: 11g, Protein: 4g, Fat: 7g, Saturated Fat: 2g, Cholesterol: 10mg, Sodium: 70mg, Potassium: 97mg, Fiber: 1g, Sugar: 10g, Vitamin A: 15IU, Calcium: 8mg, Iron: 1mg
These 3-ingredient peanut butter cookies are truly a delightful treat that couldn’t be simpler to make. With no mixer required, just three basic ingredients, and less than 30 minutes from start to finish, you’re just moments away from enjoying extra soft, wonderfully chewy peanut butter cookies. They’re not only incredibly delicious but also an ideal, fuss-free recipe if you’re baking for someone who needs a gluten-free option. Give them a try, and prepare to be amazed!
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