Keto Peanut Butter Cookies with Almond Flour
Low-carb peanut butter cookies made with almond flour and sugar substitute, perfect for anyone following a ketogenic or sugar-free diet. These cookies deliver rich, nutty peanut flavor with a tender crumb and crispy edges, all without traditional flour or refined sugar. The combination of natural peanut butter and softened butter creates a decadent texture, while almond flour adds structure and a subtle nuttiness that complements the peanut base. The classic fork-pressed crisscross design makes them visually appealing and instantly recognizable. Ideal for keto dieters, diabetics, or anyone reducing sugar intake who still wants satisfying homemade cookies. Serve them as an afternoon snack, dessert, or part of a keto-friendly dessert spread. This version stands apart by using all-natural peanut butter without added sugars and relying entirely on sugar substitutes, making them genuinely low-carb without artificial sweeteners dominating the taste.
Ingredients
- 1 cup sugar-free all natural peanut butternatural almond butter1:1dairy-freetree-nutpeanuts-freeadds dairy
slightly more delicate flavor but maintains structure
Full guide → - ½ cup unsalted softened butterghee or coconut oil1:1dairy-freepaleo
coconut oil may add slight coconut flavor; ghee adds richness
Full guide → - 1 cup granulated sugar substituteerythritol or monk fruit1:1ketosweetener
- 1 egg, room temperature
- 1 cup almond flourcoconut flour3/4 cup coconut flour per 1 cup almondgluten-freelow-carb
use only 3/4 cup as coconut flour absorbs more liquid and is denser
Full guide → - 1 teaspoon baking powder
- ½ teaspoon sea salt
- 1 teaspoon vanilla extract
Instructions
- 1
Preheat oven to 350 degrees.
- 2
Grease cookie sheets or line with parchment paper.
- 3
In a medium bowl, beat peanut butter, softened butter, sugar substitute, vanilla extract, and egg with an electric mixer until well combined.
- 4
Add almond flour, baking powder, and sea salt to the wet mixture.
- 5
Stir with electric mixer until fully incorporated.
- 6
Drop dough by tablespoon or use small cookie scoop onto prepared sheets.
- 7
Flatten each dough ball with fork tines and create crisscross design.
- 8
Bake until lightly brown around edges, about 15 minutes.
- 9
Cool completely before eating or storing.
Tips
Use all-natural peanut butter with no added oils or sugars. Stir thoroughly before measuring since natural peanut butter separates; this ensures consistent texture and prevents overly oily dough that spreads too much during baking.
Let dough cool on baking sheets for 2-3 minutes before transferring to a wire rack. These cookies are delicate while warm; cooling slightly on the hot pan allows the structure to set without breaking, then the rack prevents soggy bottoms.
Fork-pressing creates both visual appeal and functional benefit: thinner edges brown faster and become crispy, while the slightly thicker center stays tender, delivering ideal texture contrast.
Good to Know
Refrigerate in airtight container up to 5 days or freeze up to 3 weeks.
Dough can be scooped onto baking sheets, covered, and refrigerated overnight before baking. Baked cookies freeze well for up to 3 weeks.
Serve at room temperature as an afternoon snack, post-meal dessert, or alongside coffee or tea.
Common Mistakes
Use softened butter at room temperature to avoid overly dense texture; cold butter won't cream properly with peanut butter and sugar substitute.
Do not skip the cooling period; eating warm cookies causes them to fall apart due to their delicate almond flour structure.
Substitutions
Dairy-Free Swaps
slightly more delicate flavor but maintains structure
Full guide →coconut oil may add slight coconut flavor; ghee adds richness
Full guide →Gluten-Free Swaps
use only 3/4 cup as coconut flour absorbs more liquid and is denser
Full guide →General Alternatives
FAQ
Can I use regular peanut butter with added oils and sugars?
Yes, but the carb count increases significantly and the cookies may spread more during baking. For true keto, use all-natural peanut butter with no added sugars. Stir before measuring to distribute natural oils evenly.
What if I don't have a sugar substitute or prefer different sweeteners?
Erythritol, monk fruit, and stevia work well at 1:1 ratios. Avoid powdered versions without bulking agents as they won't replicate sugar's volume. Allulose works similarly to sugar but may alter browning slightly.
How long do these cookies stay fresh?
Refrigerated in an airtight container, they keep up to 5 days. Frozen, they last 3 weeks. Allow frozen cookies to thaw at room temperature for 10-15 minutes. They become slightly more fragile over time as moisture content changes.