Keto Chocolate Truffles

In a medium bowl, combine melted chocolate with avocado, vanilla, and salt. Stir together until smooth and fully combined. Place in the refrigerator to firm up slightly, 15 to 20 minutes. When chocolate mixture has stiffened, use a small cookie scoop or small spoon to scoop approximately 1 tbsp chocolate mixture. Roll chocolate in the palm of your hand until round, then roll in cocoa powder.