Hot Fudge Sauce

This is so quick...I try to keep the ingredients on hand. Unfortunately sometimes I run out of ingredients, usually when I am craving some :)!

4 baking squares of semi-sweet chocolate
2 Tablespoons butter (I cut this in half or so)
1 Can sweetened condensed milk

Melt butter and chocolate squares over low heat (I, of course, am not very patient and do this over medium and just keep stirring). Add can of sweetened condensed milk and heat until warmed through. I love this over ice cream with strawberries. It is sort of fudge-like! Refrigerate leftovers, add a little drop of water and reheat in microwave (careful...it will heat fast. Don't want to burn it...you hate to waste this stuff)!