a turkey
mortadella is cooked in hot water. Although in Italy, it is usually cooked in an oven with dry heat, then chilled.
To cook in the oven with dry heat means to bake.
Stick it in the oven on low heat. or microwave.
Crispy
It gets dry easily, I think...
Cooking by dry heat, as in a convection oven.
Baking is the present participle of the word "bake", to cook something in an oven or to dry by heat.
Preheat your oven before putting the food in it. Be patient and cook at lower temperatures. High heat can dry out the outside of your food long before the inside is cooked to the the desired doneness. Covering the food also helps slow the outside browning if you need to cook it in a hurry and at higher temperatures.
To dress a turkey for Thanksgiving dinner, you will need to remove the giblets and neck from the cavity, rinse the turkey inside and out, pat it dry with paper towels, and then season or stuff it as desired before roasting it in the oven.
An oven can be used for baking or cooking at relatively high, dry, heat. Many ovens also allow broiling or cooking under a high flame or heat.
A hot air oven is usually used for sterilizing items. They are very common in places like tattoo parlors, for example.
Convection ovens are the best type for baking because they heat so evenly. Just be aware that they tend to shorten cooking time so test sooner for doneness.