Directions
Preheat your oven to 350°F / 175°C and line a large baking sheet with parchment paper.
In a medium bowl, combine the peanut butter, erythritol, egg, vanilla extract, and salt.
Mix with a spatula or electric mixer until the dough is smooth and fully combined.
Scoop tablespoon-sized portions of dough and roll them into 1-inch balls.
Place them on the prepared baking sheet, about 2 inches apart.
Using the back of a fork, gently press down on each ball to flatten it slightly, then press again from the opposite direction to create a classic criss-cross pattern.
Bake for 10-12 minutes, or until the edges are lightly golden. The centers will still be soft.
Remove from the oven and let the cookies cool on the baking sheet for at least 5-10 minutes to firm up before transferring them to a wire rack to cool completely.
Dip the tines of your fork in a little granulated erythritol before pressing onto the dough to prevent it from sticking.