Created by JostLori on January 31, 2014
Step 1: Put the powdered milk and the sugar in a blender. Add the boiling water and the melted butter. Blend the mixture on "high" for a full minute.
Step 2: Pour the mixture into a clean jar, cover, and refrigerate overnight.
Step 3: The next day, stir the mixture again. The final product should be a creamy thickened mixture that's equal in consistency with store-bought sweetened condensed milk.