Place dates in a heatproof bowl and cover with boiling hot water. Leave for approximately 15-20 minutes, or until dates are soft. Drain water and place dates into a high powered blender. Add salt, and blitz until a paste is formed. You can leave this paste a little chunkier, or smooth, depending on what you prefer.
Preheat oven to 180ºC. Place chopped apples in a large saucepan along with lemon juice, cinnamon, vanilla essence and honey (if using). Set pot over a medium heat and stir until apples soften. Remove from heat and stir date caramel through the apple mixture. Set aside to cool.
Using one small and one larger cookie cutter, cut out circles in puff pastry. Place approximately one and a half tablespoons of apple mixture on to the smaller pastry circle. Cut a cross into the larger pastry circle, before covering the apple mixture. Use a fork to press down the edges. Lightly brush each hand pie with egg wash and sprinkle with a little ground cinnamon.
Bake hand pies for 20 minutes, or until golden brown. Remove from oven and allow to cool for 15 minutes before consuming. Serve as is, or with a dollop of yoghurt, cream or ice cream.