Preheat oven to 375°. Butter a 9 inch pie pan.
In a bowl, stir together the sugar, flour, cinnamon and nutmeg. With a pastry cutter or two forks, cut in butter until combined.
Place apples in pie pan. Drizzle with orange juice. Crumble topping on top of apples.
Place pie pan on a rimmed cookie sheet to catch any overflowing juices. Bake for 45 minutes. Let cool slightly and serve warm.