The Pepperpot can be easily found (even in summer when obscured by bracken) by following these directions lifted from the site
keirg.freeserve.co.uk/ilkley/white.htm:
Behind White Wells, take the path upwards from the west end of the building. Where the land levels out, there is a small steep path up to the right – scramble up! After 50 metres the path divides – keep left up the edge of the escarpment to join the main path on the top. There is a carved rock only 6 metres up the main path – a small rock with 5 carved cups.
Return down the main path for a few metres looking for a faint path to the left. The Pepperpot lies 15 metres into the bracken to the South West.