Wash and dry the pumpkin. Then cut off a piece and remove the fibers and seeds. Peel the skin (place the piece on a cutting board and peel downwards with a knife) and cut into thin slices (it's best if they are all of similar thickness) or grate into slices using a grater.

Drizzle the slices with lemon juice and place them on a baking sheet lined with parchment paper. Ensure they do not overlap. Lightly sprinkle with cinnamon. Place the baking sheet in a preheated oven at 140°C for about 10-15 minutes. After the specified time, turn the slices over and sprinkle with cinnamon again. Return to the oven for another 10-15 minutes, monitoring to ensure they do not burn (remove earlier if necessary). After this time, the pumpkin slices should be sufficiently dried. If not, leave them in the oven for a few more minutes.

Remove the finished chips from the oven and let them cool.