Pour condensed milk in a microwave safe dish

Now dump the bag of chips into condensed milk and stir in

Put in microwave for 3-5 minutes, stirring each minute

When it is all melted together pour into a greased 9" x 9" square pan and let it set in refrigerator (covered), 30 mins. to an hour

remove from refrigerator and turn over onto cutting board

Using a knife that you warmed in a glass of warm water you can now slice into 1" squares