What is the fine-grained topic of the following text: Add as she suggests, about a teaspoonful of fresh grated nutmeg (the oils in nutmeg are volatile or transient, so using pre powdered nutmeg means that there is no freshness of flavour), but instead of her 4 tablespoonsful of sherry or brandy, add the grated rind and juice of a lemon. Only return the topic.
Adding ingredients to a recipe