Preheat the oven to 180°C (356°F).
Mix almond flour, sweetener, and salt in a bowl.
Add eggs and vanilla extract, then mix to form a dough.
Melt the butter and combine it evenly with the dough.
Shape the dough into bite-sized balls.
Place the shaped dough on a baking sheet lined with parchment paper.
Bake in the oven at 180°C (356°F) for 12-15 minutes.
Transfer to a cooling rack and let cool completely.