Five Star Gift Ideas

How about gifting her a high-quality coffee grinder? That way, she can grind her own beans and get the perfect flavor she likes. You can also consider a coffee maker that she's been eyeing or a subscription to a coffee club that delivers different blends to try each month.
Another option would be to package up a selection of artisanal coffee beans in a gift basket with some coffee accessories like a French press, pour-over kettle, and a set of cute mugs. You can even add a handwritten note sharing how much you appreciate sharing a cup of coffee with her every morning.

Or you can get her a star map with the date of your anniversary.