If you love the joy of baking but don’t love complicated recipes, these 3 Ingredient Sugar Free Peanut Butter Cookies are just what you need. This clever little cookie is rich, nutty, and soul-satisfying without sneaking in any extra sugar, so you get pure peanut butter bliss in every bite. Whether you’re baking for a low-sugar lifestyle or just want a treat that’s as easy as it is delicious, you’ll be amazed at how these cookies deliver big flavor with such a short ingredient list.

3 Ingredient Sugar Free Peanut Butter Cookies Recipe - Recipe Image

Ingredients You’ll Need

The magic of these cookies is in their simplicity—every ingredient plays an important role in creating the perfect chewy, fragrant treat. Let’s take a closer look at why each one is essential, and how it helps shape the final irresistible result.

Peanut Butter: Go for a creamy, no-stir peanut butter for the smoothest texture and classic, full-bodied flavor.
Sugar Alternative: Choose your favorite granulated sugar substitute—like erythritol, monk fruit, or allulose—to keep things sweet, but totally sugar free.
Egg: This humble ingredient acts as the glue, giving your dough structure and a lovely, tender crumb.

How to Make 3 Ingredient Sugar Free Peanut Butter Cookies

Step 1: Preheat and Prep

Start by preheating your oven to 350 degrees Fahrenheit. Line your baking sheet with parchment paper or lightly spray it to ensure your cookies lift off easily—no crumbling or sticking in sight! This quick prep step makes clean-up a breeze, too.

Step 2: Cream the Peanut Butter and Sugar Alternative

In a large mixing bowl, combine your peanut butter and sugar substitute. Use a sturdy spoon or a mixer to cream them together until the mixture looks lighter in color and a bit fluffy—this helps evenly distribute sweetness and makes for a softer cookie.

Step 3: Add the Egg

Crack your egg into the bowl and stir until you can’t see any streaks of yolk left. The mixture will come together into a thick, cohesive dough that’s easy to scoop and shape. The egg really turns a few pantry staples into cookie dough magic!

Step 4: Portion and Shape the Cookies

With a cookie scoop or tablespoon, drop balls of dough onto your prepared baking sheet, spacing them about two inches apart. Gently flatten each ball to about half its height using your hand or the bottom of a glass, then use a fork to make that signature crisscross pattern. This creates cute ridges and helps the cookies bake evenly.

Step 5: Bake and Cool

Slide the tray into your preheated oven and bake for seven to ten minutes, watching for the edges to turn light golden brown. Once out of the oven, let them cool on the baking sheet for a few minutes to firm up before moving to a cooling rack—your patience will be rewarded with sturdy, crumbly treats that won’t fall apart!

How to Serve 3 Ingredient Sugar Free Peanut Butter Cookies

Garnishes

The best thing about these cookies is how versatile they are—dress them up if you like! A sprinkle of flaky sea salt adds a gourmet touch, while a drizzle of melted dark chocolate (sugar free, of course) makes them party-worthy.

Side Dishes

Pair your 3 Ingredient Sugar Free Peanut Butter Cookies with a cold glass of almond milk, strong hot coffee, or even a bowl of fresh berries. The balance of flavors is the perfect way to round out a snack or dessert table, especially if you’re entertaining guests who appreciate simple elegance.

Creative Ways to Present

Get playful! Stack and tie a ribbon around a few cookies for easy gifting, or set out on tiered stands for a nostalgic afternoon tea. These also make adorable ice cream sandwich bases—spread some frozen yogurt between two cookies and refreeze for a delightful summertime treat.

Make Ahead and Storage

Storing Leftovers

Once your cookies are completely cooled, store them in an airtight container at room temperature. They’ll stay soft and delicious for up to five days, making them perfect for grab-and-go snacking or afternoon cravings.

Freezing

For longer storage, freeze the cookies in a single layer on a baking sheet, then transfer to a freezer bag once solid. They will maintain their flavor and texture for up to three months—just thaw at room temperature whenever the craving strikes.

Reheating

If you like your cookies warm (and who doesn’t?), pop them in the microwave for 8–10 seconds. This refreshes the peanut butter aroma and makes the centers extra soft without drying them out.

FAQs

Can I use crunchy peanut butter in these cookies?

Absolutely! Crunchy peanut butter adds bits of nutty texture to every bite. Just note that the cookies might spread a touch less and be slightly more rustic looking—delicious either way!

What’s the best sugar substitute for this recipe?

Any granulated sugar alternative that measures like sugar will work. Erythritol, monk fruit, and allulose are popular choices. Steer clear of liquid sweeteners, as they can change the dough’s texture.

Can I double the recipe?

Yes, doubling (or tripling!) the recipe is easy and scales beautifully. Make sure to bake in batches so your cookies have enough room to spread and bake evenly.

Why do my cookies fall apart?

If your cookies are crumbling, let them cool completely on the baking sheet before moving. The egg helps bind, but they’re still delicate until set. Also, make sure you don’t overbake!

Are these cookies keto-friendly?

They sure are, as long as you choose a sugar free sweetener with zero net carbs. Always double-check the labels of your ingredients to make sure they fit your dietary needs.

Final Thoughts

There’s something special about baking up a batch of 3 Ingredient Sugar Free Peanut Butter Cookies—they’re an invitation to slow down, share, and savor something sweet without any hassle. Whether you’re making these for yourself or someone you care about, I hope you enjoy every chewy, nutty bite!