If you need to make amendments to a recipe, you can simply do this by modifying an existing recipe.
Once you have selected the recipe you wish to modify, you can select the 'Pencil' button on the Recipe Browser, or select 'Modify Recipe' from the 'Recipes' menu, or press the 'Command + m' keys, or via the context menu.
You may wish to change the ingredient measurements that you are using, or make notes to the 'Variations' when you modify a recipe.
You save the modifications to the recipe by selecting the √ 'save' button at the bottom of the Recipe Browser. If you don't want to save the changes to the recipe you can select the × 'cancel' button at the bottom of the Recipe Browser