Instructions

1. Preheat oven to 400°F (200°C).
2. Peel, halve, and core apples.
3. In 10-inch cast iron or oven-safe skillet, melt butter over medium heat.
4. Add sugar and cook until melted (do not stir, let it caramelize).
5. Arrange apple halves cut-side down in caramel, packing tightly.
6. Continue cooking for 10-15 minutes until apples soften and caramel darkens slightly.
7. Squeeze lemon juice over apples.
8. Roll out puff pastry to about 1/8 inch thickness.
9. Cut circle slightly larger than skillet.
10. Gently place pastry over apples, tucking edges down into pan.
11. Bake for 20-25 minutes until pastry is golden brown.
12. Cool for 5 minutes, then carefully invert onto serving plate (caramel drips over pastry).
13. Serve warm with vanilla ice cream.