Apple Cinnamon Foam
Carefully mix the apple juice, cream, and cinnamon, and pass it through a fine-meshed strainer into a 0.5 l siphon bottle. Give it a shot with 1 cartridge and shake vigorously. Allow it to cool for 1-2 hours.
Apple Cake
Peel your apples (remember to remove the cores) and cut them into small pieces.
Mix sugar, lemon juice, cinnamon, raisins, and rum in a pot, and bring it to a brief boil. Add the apples and let it simmer gently for about 5 minutes in the mixture.
Then set the apples aside and let them cool.
Find a baking sheet lined with parchment paper and pour flour, powdered sugar, and butter onto it. Mix it roughly with your fingers and bake in the oven at 160 degrees Celsius (320 degrees Fahrenheit) (conventional oven) until golden brown - this takes about 10 minutes.
Serving
Fill your glasses with a layer of the "crumble"/Streusel mixture, the apple compote, and top it off with the apple cinnamon foam directly from the siphon bottle.