Suggestion: Crops and animal products.

1. When making a dish it gives option to buy dish or make using ingredients.

2.You can buy garden plots for vegetables,roots,small fruits and berry bushes, grains such as wheat and rice.

3. An animal shelter that makes fresh meat,eggs and milk.or a pet you can harvest such from every 2 or 3 minutes(with or without feeding them wheat)

 4. The option to sell any of these ingredients to other players. The garden plots and animals or animal sheltercto only be buyable on the market not tradeable.