In a medium bowl, beat the softened butter and cream cheese together with an electric mixer until light and creamy, about 2 minutes.
Add the powdered erythritol, vanilla extract, and salt. Beat on medium speed until smooth and well combined.
Add the almond flour and mix on low speed until a soft, thick cookie dough forms. Scrape down the sides of the bowl as needed.
Fold in the sugar-free mini chocolate chips with a spatula until evenly distributed throughout the dough.
Serve immediately with a spoon, or refrigerate for 30 minutes for a firmer, scoopable texture. Store in an airtight container in the refrigerator for up to 7 days.