Preparation
In a large bowl, combine the softened unsalted butter, softened cream cheese, pure lemon extract, and granular Stevia.
Using an electric hand mixer, beat on medium-high speed for 2-3 minutes until the mixture is completely smooth, light, and fluffy. Scrape down the sides of the bowl as needed.
Line a baking sheet or large plate with parchment paper.
Using a small cookie scoop or two teaspoons, portion out the cream cheese mixture into 12 even-sized balls and arrange them on the prepared sheet.
Place the baking sheet in the freezer for at least 2 hours, or until the fat bombs are completely firm to the touch.
Once frozen solid, transfer them to an airtight container or freezer-safe bag for storage.
Serve directly from the freezer for the best texture.