Use male flowers just before or just after they opened. Remove all but 1cm of stem, remove the green sepals with spikes on them, and the pistil. If the flowers have been open, they are more likely to have an inhabitant.
Dip the flower in beaten egg, let the excess drip off, then toss in flour and shake off the excess.
Fry gently in oil, so that it takes about 3-4min per side to get just before golden brown.