TIP: Pie is done when center reaches 200°F. Tap center surface of pie lightly - it should spring back when done. For easy clean up, spray pie pan with cooking spray before placing pie crust in pan. If pie crust is overbrowning, cover edges with foil.
HIGH ALTITUDE ADJUSTMENTS: Reduce sugar to 2/3 cup and increase butter to 3 tablespoons. Reduce oven temperature to 325°F.
VARIATION: coarsely chopped walnuts may be substituted for pecans to make a walnut pie.