Sugar Free Peanut Butter Cookies – Soft & Delicious

These Easy 3-Ingredient Sugar-Free Peanut Butter Cookies are a dream come true for anyone following a low-sugar, low-carb, or keto lifestyle. Soft, chewy, and packed with rich peanut butter flavor, they’re the perfect no-fuss cookie that satisfies your sweet tooth without refined sugar or flour.

Made in just one bowl with only three pantry staples, these cookies are naturally gluten-free, flourless, and quick enough to whip up any time a craving strikes. Ideal for meal prep, lunchboxes, or a healthy snack, they’re simple, wholesome, and family-approved.

Best of all? No mixers, no chilling, and they bake in under 15 minutes.

Ingredients Overview

With only three ingredients, quality and ratios matter. Here’s a breakdown of each one and how to customize the recipe to suit your preferences.

• Natural Peanut Butter: The star of the show. Choose creamy or crunchy unsweetened peanut butter with no added oils or sugars. It provides fat, structure, and flavor.

• Egg: Acts as the binder, holding everything together and giving the cookies structure. Use a room-temperature egg for best texture.

• Sugar-Free Sweetener: Use a granulated keto-friendly sweetener like erythritol, monk fruit blend, or allulose. Choose one that measures 1:1 like sugar and is designed for baking to get the right texture.

Optional Add-Ins (If You Want to Go Beyond 3 Ingredients)

• A pinch of salt (especially if using unsalted peanut butter)

• 1/2 tsp vanilla extract

• A sprinkle of cinnamon

• Sugar-free chocolate chips

Step-by-Step Instructions

These cookies come together in just a few minutes. Here’s how to get the perfect chewy bite every time:

1. Preheat the Oven

Preheat your oven to 175°C (350°F). Line a baking sheet with parchment paper for easy cleanup and to prevent sticking.

2. Mix the Dough

In a medium bowl, combine:

• 1 cup natural peanut butter

• 1 large egg

• 1/3 cup granulated sugar-free sweetener

Stir until the dough is thick and smooth. If it feels a little greasy (depending on the peanut butter brand), let it sit for 2–3 minutes to firm up.

3. Form the Cookies

Using a spoon or small cookie scoop, portion out the dough into 1-inch balls and place on the prepared baking sheet.

Flatten slightly with a fork, making a criss-cross pattern. This helps them bake evenly and gives that classic peanut butter cookie look.

4. Bake

Bake for 10–12 minutes, or until the edges are lightly golden and the tops look set.

Let them cool on the pan for 5–10 minutes before transferring to a rack. They will firm up as they cool.

Tips, Variations & Substitutions

• Almond Butter Option: Swap peanut butter for almond butter if preferred. Cashew butter works too for a milder taste.

• Vegan Version: Replace the egg with a flax egg (1 tbsp ground flax + 2.5 tbsp water, mixed and rested for 5 minutes). Texture will be slightly softer.

• Crunchy or Smooth: Use chunky peanut butter for extra texture or smooth for a creamier bite.

• Add Texture: Stir in 2 tbsp of chopped peanuts or sugar-free chocolate chips.

• Make It Fancy: Dip half of each cookie in melted dark chocolate and chill for a more decadent treat.

Serving Ideas & Occasions

These cookies are perfect for:

• Quick weekday snacks

• Kid-friendly treats (they won’t miss the sugar!)

• Post-workout bites with a cup of coffee

• Keto dessert platters or holiday cookie boxes

• Easy prep-ahead snacks for travel or work lunches

Pair with almond milk, black coffee, or your favorite herbal tea for a balanced treat.

Nutritional & Health Notes

These cookies are naturally:

• Gluten-Free

• Dairy-Free

• Flourless

• Refined Sugar-Free

• Keto-Friendly (net carbs depend on sweetener)

Thanks to the peanut butter and egg, they’re rich in healthy fats and protein. Using a zero-calorie sweetener keeps them very low in carbs — typically 1.5–2g net carbs per cookie, depending on the ingredients used.

For a cleaner version, stick to unsweetened nut butter and a monk fruit or allulose blend that doesn’t have any added bulking agents.

FAQs

Q1: Can I use any kind of peanut butter?

A1: Natural peanut butter (made from just peanuts and salt) works best. Avoid brands with added sugar or oils, as they can affect the texture.

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Q2: Why are my cookies too soft or falling apart?

A2: They may need a little more time to cool. These cookies firm up as they sit. If still too soft, try adding 1 tbsp of almond flour to the dough next time.

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Q3: Can I make these ahead and freeze them?

A3: Yes. You can freeze the dough or the baked cookies. Store in an airtight container in the freezer for up to 3 months. Thaw at room temp before eating.

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Q4: What’s the best sugar-free sweetener for baking?

A4: Granulated erythritol or monk fruit blends work well. Allulose is also great for a chewier texture. Avoid liquid sweeteners as they can make the dough too wet.

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Q5: How long do these cookies last?

A5: Store in an airtight container at room temperature for up to 5 days, or in the fridge for up to 10 days.

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Q6: Can I double the recipe?

A6: Absolutely. This recipe scales well. Just keep the 1:1:1 ratio (1 cup peanut butter, 1 egg, 1/3 cup sweetener) per batch.

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Q7: Are these cookies suitable for diabetics?

A7: Yes, if made with a suitable sugar-free sweetener and no high-carb additions. Always check the labels of your ingredients to ensure they’re low in net carbs.

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