Keto Hot Fudge

instructions:

1. Combine butter, allulose, cocoa, salt, and water in a small saucepan over medium heat.
2. Whisk together as butter melts, and allow to bring to a boil.
3. Whisk constantly once boiling, and allow to boil for 1 1/2 minutes.
4. Take off the heat and whisk in vanilla extract.
5. Store in an airtight container in the refrigerator. Reheats well.