EAT BREAD; LOSE WEIGHT
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If you’re keto, low-carb, or concerned about your blood sugar and think bread is off limits — this free guide was written for you.
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KETO 3 INGREDIENT PEANUT BUTTER COOKIES
Transform your sourdough discard into chewy, protein-packed peanut butter cookies in under 30 minutes and only 3 ingredients.
- Prep Time: 5 minutes
- Cook Time: 12 to 15 Minutes
- Total Time: 20 Minutes
- Yield: 14
- Category: Discard Recipes
- Method: Baking
- Cuisine: Keto Sourdough Discard
- Diet: Diabetic
Ingredients
- 1½ cups (360g) sugar-free chunky peanut butter (or no sugar added)
- ½ cup (100g) brown sugar–style keto sweetener (not counted in carbs)
- ⅓ cup (80g) Biome Boss™ living sourdough starter
- ½ tsp (2g) xanthan gum
Instructions
- Preheat oven to 350°F (180°C).
- In a bowl, add peanut butter. Add sweetener and mix well.
- Fold in Biome Boss™ living sourdough discard, then sprinkle xanthan gum over the top. Mix into a dough.
- Set in the refrigerator for 15 to 30 minutes to stiffen.
- Using a spoon, scoop out about 1 heaping tablespoon of dough. Roll into a ball and set on a baking tray lined with parchment. Repeat and make 14 balls total.
- Using a fork (run under hot water if fork sticks to the dough), press fork into each ball to flatten it and leave fork marks. Do fork marks again in the opposite direction to create a crosshatch pattern.
- Bake for 12 to 15 minutes until the edges of the cookies are golden.
- Remove from oven. Let cool for 10 minutes on baking tray, then transfer to a cooling rack for further cooling.
- Let cool for a few hours before enjoying.
Notes
⚠️ Nutrition Note
The nutritional values below are estimates.
- Non-glycemic keto sweeteners are not included in carb counts because they are not metabolized like sugar and generally do not impact blood glucose.
- Xanthan gum contains zero digestible carbs.
- Nutrition varies by brand, country, and formulation, especially with peanut butter. If accuracy matters to you, calculate using the exact brand you use.
Tip: Always hunt for a chunky peanut butter with the lowest net carbs and lowest sugar available.
Estimated Nutrition (Per 1 Cookie | 14 cookies total)
🇺🇸 Using Teddie Super Chunky Peanut Butter
(2 Tbsp = 7g carbs, 3g fiber)
- Calories: ~159 kcal
- Fat: ~12.1 g
- Protein: ~5.6 g
- Total Carbs: ~5.6 g
- Fiber: ~1.9 g
- Net Carbs: ~3.6 g
👉 Recommended (USA): https://amzn.to/4q8PZjU
🇨🇦 Using NutroGusto Crunchy Peanut Butter
(2 Tbsp = 7g carbs, 2g fiber)
- Calories: ~159 kcal
- Fat: ~12.1 g
- Protein: ~5.6 g
- Total Carbs: ~6.0 g
- Fiber: ~1.7 g
- Net Carbs: ~4.3 g
👉 Recommended (Canada): https://amzn.to/4qKpRLY
Recipe Details
- Prep Time: 10 minutes
- Chill Time: 30 minutes
- Bake Time: 12-15 minutes
- Additional Chill Time: 1 hour minimum
- Total Time: ~2 hours
- Yield: 14 cookies
- Difficulty: Easy
Storage Instructions
- Room Temperature: Up to 5 days in airtight container
- Refrigerator: Up to 2 weeks (best enjoyed cold)
- Freezer: Baked cookies up to 3 months; unbaked dough balls up to 3 months (bake from frozen, add 2-3 minutes)
Equipment Needed
- Medium mixing bowl
- Measuring cups and spoons
- Sturdy spoon or silicone spatula
- Baking sheet
- Parchment paper
- Fork
- Small bowl of water
- Wire cooling rack