Step 1

Combine the chocolate chips and the sweetened condensed milk in a small saucepan over medium heat.

Step 2

Whisk or stir constantly until the chocolate has melted and the ingredients have combined smoothly, about 3-5 minutes. Add extract if desired and stir to combine. Serve warm.

Step 3

The sauce should be quite thick and will very slowly pour off of a spoon. Transfer any remaining sauce to an airtight container and refrigerate. Enjoy!