What is the recipe description field that I can see in the recipe editor?
The recipe edit screen shows you all data fields so you can populate them. That's why it appears there. You need to be able to add/edit text of that field for the recipe record.
The recipe display screen shows you the details of a recipe. The complete recipe, so you can see exactly what it is.
The description is just a brief description of the recipe that is meant to display in the Recipe Browser screen where you see the recipe titles, so you can see a description of a recipe without being forced to open a recipe to see what it is.