@alex @sibylle Last summer I was visiting a friend who had been wanting to learn to do a potato omelette for some time, since I used to make them for their family. So I asked for eggs, and a child was sent to pick them up from the chicken coop. Then I asked for potatoes, and a child again was sent to dig them up from the garden. I had brought olive oil. The whole process, done slowly, was about 40 minutes. If we were to factor the costs in hours spent looking after chickens, potatoes, and even picking and pressing olives, the cheapest part would be my time cooking. Overall, the most expensive potato omelette any of us had ever eaten. Yet delicious and, in some ways, inexpensive, as every step was woven into a particular, and deliberately chosen, way of life.