Address envelopes and letters with Outlook contact data

I’ve tried a couple of times to create envelopes in Word for Outlook contacts (for which I’ve entered addresses) but every time I try, I end up clicking around a lot without any satisfactory result.

This seems like a core functionality of Outlook though, which shouldn’t be too hard and quickly to repeat so I must be doing something wrong here.

Could you walk me through the process of creating envelopes?