combine (in a bowl,)  the butter, sugar,vanilla,and sweetened condensed milk. Add the flour and chocolate chips.

Now, you may be able to form this into balls at this point. I however, could not- I think it's the summertime in Florida problem. That's why we have refrigerators. Chill your dough if you need to. Maybe a half hour. Roll into walnut sized balls. Place balls in the freezer for 2hrs.

Melt  12 oz chocolate chips with 1 tbs shortening or butter. To melt, place in a microwave at 25 second intervals, stirring between each. Be careful- overheated chocolate can seize up. Just get it till it's starting to melt and stir away, the chocolate will continue to melt and smooth out. My little tip. I have ruined a lot of chocolate in my days.

Now, you can dip the balls using a spoon- or fill pastry bags with the melted chocolate and drizzle. You don't have pastry bags? Okay, in this instance a plastic bag should work. But, next time you see some of those disposable pastry bags...get them. They are so worth it.  :) So, drizzle or dip and store these babies in the fridge. Unless you live in an igloo. But- I don't think igloos have internet, do they? I have never seen an igloo in real life. Do they still exist? Hmmm... I need to google that.