While many home and professional kitchens have a deep fat fryer for frying, it isn’t an essential piece of equipment – all you need is a frying pan, some cooking oil and a slotted spoon. A kitchen thermometer is very useful when trying to control the temperature of the oil but, again, not essential.
The best oils to use for deep-frying are flavourless with high smoking points, for example, sunflower, groundnut and vegetable oil.