Chefcoins can ONLY be used in the Islands.
But how do you get them?

1) By completing orders in the Delivery Service.

2) By completing orders in the Culinary Festival.

3) By collecting earnings from the following buildings on the Islands:
Ferry: 2 Chefcoins every 3 hours
Cableway: 5 Chefcoins every 4 hours
Checkpoint: 35 Chefcoins every 24 hours

4) Collecting earnings from the following City Sights:
Jackson Square: 15-20 Chefcoins every 24 hours
Metropark Shopping Mall: 15-20 Chefcoins every 24 hours
Esperanto Museum in Svitavy: 15-20 Chefcoins every 24 hours
Vrana Palace: 10-15 Chefcoins every 24 hours
Riverside Museum: 10-15 Chefcoins every 24 hours
Liana and Richard’s House: 75 Chefcoins every 20 hours
Upgraded "Poet’s House" Club: 25 Chefcoins every 24 hours