coarse sugar for sprinkling on top optional
1 tbsp. milk
1 large egg
1 tbsp. butter cut into pieces
2 pie crusts homemade or store-bought
1/4 tsp. ground nutmeg
1 tsp. ground cinnamon
1/4 cup all-purpose flour
1/4 cup brown sugar lightly packed
1/2 cup granulated sugar
1 tbsp. fresh lemon juice
7 cups sliced apples