In a saucepan or in the microwave in a microwave-safe bowl, melt the Unsalted Butter (3 tablespoon) over low heat.
In a small bowl, combine the Almond Flour (1 1/4 cup), Powdered Erythritol (2 tablespoon), zest of the Lemon (1), Vanilla Extract (1 teaspoon), Salt (1 pinch) and Butter. You want the texture of a sticky cookie dough.
Pull off pieces of the dough and roll into 2-inch balls. Place them on a plate.
Refrigerate for about 1 hour so the cookies can firm up, then serve.