Unroll second pie crust and cut into 'strips' of pastry
Melt butter in large saucepan over medium heat. Add flour and stir together until smooth
Add White and Brown sugar, water, vanilla, cinnamon and nutmeg. Stir together until smooth, simmer for 3-4 mins.
Add Apples and toss to coat
Add coated apples to pie plate, reserve some remaining liquid.
Lay pastry strips over apples in a criss-crossing pattern and press ends to top edge of bottom pastry. Use the longest pieces for the middle of the pie, and the shorter pieces towards the outside, leaving about 1 inch in between rows.
Lightly brush top of pastry lattice with some remaining sugar syrup mixture, drizzle any remaining mixture over the pie, allowing it to run down into the apples through the pastry lattice.