A realy easy,inexpensive but highly effective boillie is the TP or Trout Pellet boily.Just grind up 10ozs of pellet into a powder mix with 4 eggs roll and boil for 3mins.Fish over pellets.You can then start adding extra things like a flavour or a binding agent to change it to suit.This will teach you the mechanics of boily making.You can start to learn what each aditional ingredient you add does but still have a highly effective HNV bait whilst doing so.As you progress dont get to bogged down with Protein values etc just learn to make a boily which has the charecteristics you require and carries a flavour/smell well.Good reading are Rod Hutchinsons Carp Book,Carp Fever and Tiger Bay.