Fit piecrust into a 9-inch pieplate according to package directions; fold edges under, and crimp.
Stir together cranberries and next 4 ingredients, and spoon in-to piecrust.
Whisk together egg and remaining ingredients, and pour over cranberry mixture.
Bake at 400° for 20 minutes. Reduce temperature to 350°, and bake 30 minutes.
I have made this every year and my family looks forward to every year. I serve it with vanilla ice cream. FABULOUS!!!!!