One of my favourite pies… scratch that… my very favourite pie, is my mom’s Sour Cream Apple Pie.  To me, it’s pie perfection – tender flaky pastry, succulent apples mixed with tangy sour cream and a perfect cinnamon brown sugar topping.  Autumn in a pie plate.  But then, then I saw Greg’s post for PEACH sour cream pie over on SippitySup and I started to