Creme de Menthe Bars

"These bars are what the Christmas season means to me and conjure up wonderful childhood memories. They're almost no-bake, and although they're a three-layer bar, they're easy. They're minty, but not overpowering. They're not super sweet, nor are they intensely chocolaty. They're a perfect balance of all those elements. The base is where the crunch resides, and it lends a contrasting texture against the smooth, creamy, minty filling. The top chocolate layer has a gentle snap, and perfectly encases the filling. I use and recommend Nabisco Famous Chocolate Wafers, but if you can't find them, substitute with regular Oreos. Make sure to chill the bars properly before slicing. They keep for ages in the fridge or freezer, making them a great make-ahead party dessert...."