Line the baking tray with the parchment paper to prevent the apples sticking.
Slice the apples in 5-7mm thin slices
Lay them on the parchment paper, leaving a bit of a gap between each (there are going to shrink, so there is no need to leave big gaps)
Using a pastry brush, paint the apple slices with lemon juice. The acidity in the lemon juice helps the apples to stay their true colour and not to go brown as they dry.
Sprinkle the apples with the mixed spice. This adds amazing fragrance to your finished potpourri.
Drying your apples naturally
Place the trays somewhere warm, but not on direct sunlight (next to a radiator or warm cupboard is fine).
Check and turn the apples frequently to make sure they dry evenly.
This method takes 2-3 days depending on the time of the year (or if you have your heating on or not). It's the cheapest way to dry apples as you are not using any extra energy, but it does take a long time.
Drying your apples in the oven
This method takes about 6-7 hours, but it does consume energy. Place the trays with the apples in your oven on no more than 100C with the door slightly open (stick a woden dowel or mixing spoon in, so that the door can't open).
Turn over the apple slices after a few hours and sprinkle with spices again (if using).
If you are using these apples for decorating only, you can also add a bit of sparkle with a craft glitter or even spray them with a gold or silver paint.
You can use the ribbons to tie the apples together, make garlands or just add them to your Christmas Potpourri.