Combine the ingredients in a kitchen mixer. Roll out to 2 mm. Set aside.
Bring the water, salt, sugar and butter to the boil. Add the flour and stir to dry out the paste. Add the eggs, one at a time, out of the heat. Pipe 2 cm diameter choux paste balls. Add a light and crunchy biscuit and bake at 175°C (347°F) for approximately 15 mn.
Combine the first three ingredients. Heat the water and sugar to 118°C (244°F), then pour onto the whisked egg whites. Cool then add the meringue to the first mixture. Pipe using a n°6 pastry nozzle. Bake at 145°C (293°F) for approximately 15 mn.
Make vanilla pastry cream with the first six ingredients. Cool. Smooth and combine with the cream previously whipped.
Caramelise the sugar. Stop the cooking process by adding the butter, then the cream and calvados. Return to the heat and cook to 102°C. Blend and set aside.
Make a dry caramel, stop the cooking process by adding the butter, then add the peeled and chopped apples. Cook until of compote like consistency but not completely smooth. Add the lemon juice and calvados during cooking.
On sheets tempered chocolate, cut out 4 cm equilateral triangles.
Peel and core the apples. Cut into 2 mm slices then 2 cm triangles. Position on silpat sheet and sprinkle with icing sugar. Bake between two baking sheets at 65°C (149°F) for 8h.
Fill the choux buns with compote and diplomat cream. Position the chocolate triangle on the centre of the choux and stick with a little caramel confit. Sandwich the caramel confit between two macaroon shells and stick on top of the chocolate triangle. Insert the apple crisp into the macaroon.