Yes you can..but the ones you select for 'seed' have to be really really clean from any blemises or sign of disease/damage.
I like to clean mine with soapy water (washing up liquid is good) so they don't carry any nasties to the next year..and I then let the skin dry out. Once dry I put them in container of some sort..large terracotta pots are good..some fabric/old t-shirt of something over and I place them in cool (shed) and keep them from freezing and away from mice/rats.
