Why add a plain label to your home produced jams, pickles, dry goods etc. when you can easily produce something like this using the shapes provided in Apple apps such as Pages, Numbers and Keynote?
Printing them onto plain paper is fine. Labels can be glued to jars.
The image below is using just 4 of the shapes available in Keynote.
If you cannot work out how to do this then ask. AUSOM members are keen to assist with your creative activities.
Below is the shapes included in the ‘label’ and some of the other shapes you could choose.