I made just a few tweaks but mostly follow it as written. Because it's that good.
Just looking at this makes me want to go make another batch. Now.
The secret to the crunch is adding buttermilk to the batter. I was a little hesitant at first but it makes is so, so good.
Don't crowd the pan. Cook it in batches
Cook (in batches) until nice and brown then flip and do the same to the other side. You want them nice and brown so don't rush it. Depending on the size of your pan, it may take 3-4 batches to get them all done but it's worth the time and effort.
Make sure you leave it in long enough to get that golden delicious crust