The Kitchen lets you cook food in Harvest Moon: Friends of Mineral Town.
You can buy the kitchen from the TV Shopping Network. Zack will deliver the kitchen to your house in a few days after its ordered.
To know how to cook a food, you need to know the recipes to cook it.
To cook, you need kitchen utensils. Cooking utensils can also be purchased from the TV Shopping Network. After buying all of the appliances and utensils, you'll get to purchase a Big Bed from the TV Shopping Network.