Easiest fudge, EVER

It's been years since I last made fudge, possibly because it didn't turn out so well last time, and to be honest I'm a little snobby when it comes to fudge. It has to be super creamy, have lots of nuts, and be made with semi-sweet or dark chocolate. The last time I made it, it ended up too crystal-y and grainy...not good.
This time I wanted to make some as a gift, and it only took about 5 minutes (minus the fridge cooling time). Here's the end result:

This is all it takes:
3 c semi-sweet or dark chocolate chips
4 T butter (I used just regular salted butter)
1 14 oz can sweetened condensed milk
Nut of choice, whatever quantity suites your taste (I like about a cup of chopped almonds)
Melt everything together slowly, 20-30 seconds (on high) at a time in the microwave, stirring between each time reset. When it's almost fully melted but you still see what appear to be whole chocolate chips, stir like crazy. I stopped microwaving at this point because I didn't want to burn or overcook it, since it's really easy to do. Instead I just kept stirring and stirring for probably a full minute or two til it was all smooth.
Pour in a pan that has been lined with parchment paper, stick it in the fridge, and a few hours later pop it out. The parchment paper makes it super easy to remove; just chop it up in whatever size squares you want with a super sharp knife and you're good to go. A good tip is to spray the knife lightly with Pam before each slice - makes the end result look much more presentable!!