The ancient Roman kitchen was equipped with a built-in deep fryer known as 'caccabus'. This deep fryer was made of bronze or clay and was used to fry various foods. Romans enjoyed fried dishes such as 'isicia omentata' (fried meatballs) and 'frictilia' (fried pastries). The caccabus was heated by placing it directly on the fire, and the food was cooked in hot oil or fat. The Romans were known for their culinary skills, and the use of a built-in deep fryer in their kitchens was a testament to their love for fried delicacies.