If your cookbook contains a cheesecake recipe, and it says to bake the cake for 10 minutes so a light skin forms on top so the Heath Bar Toffee chunks you now add will stay on top while the cake continues to bake and form a delicious and visually appealing topping, and in fact no skin has formed and the Heath Bar Toffee chunks sink into the cake like naval depth charges, because the “10” should have been a “40,” then your book was sloppily edited and you deserve to have raw ginger pounded up your nose.