Return the saucepan to the stovetop, and, over low heat, stir the custard until it is thick enough to coat the back of a spoon, 5 to 8 minutes. Refrigerate for at least 2 hours. Transfer the ...

Gently mix in diced nectarines. Pour fruit and custard filling carefully into pie shell, making sure fruit is evenly distributed. Cover with vented crust, or lattice top. Brush top with egg wash ...