"I put the rosemary in a coffee grinder to get it nice and finely ground. "

If you check some of the bulk spice stores, you can occasionally get powdered rosemarry. I have some I've had around for a couple years, so I prob should get fresh, but I love using it over the prickly regular rosemary. Plus from bulk stores you can get a very small amount to be sure you use it while still fresh.