Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.

In a mixing bowl, combine peanut butter, keto sweetener, egg, vanilla extract, baking soda, and salt. Mix until smooth.

Using a tablespoon, portion the dough onto the prepared baking sheet, spacing them 2 inches apart.

Flatten each ball slightly with a fork to create a crisscross pattern.

Bake for 8 to 10 minutes until edges are golden and centers are soft.

Let cool on the sheet for 5 minutes before transferring to a wire rack.