Apple Slab Pie

Ingredients

• 1 box refrigerated pie crusts, softened as directed on box
• 1 cup granulated sugar
• 3 tablespoons all-purpose flour
• 1 teaspoon ground cinnamon
• 1/4 teaspoon ground nutmeg
• 1/4 teaspoon salt
• 1 1/2 tablespoons lemon juice
• 9 cups thinly sliced, peeled apples (9 medium)
• 1 cup powdered sugar
• 2 tablespoons milk