I use the pastry cutter for mashing the beans. The original recipe called for a fork, but mashing things with a fork is not a lot of fun. I used to use the food processor, but it does TOO good a job and can make it smoother than you want. The pastry cutter is perfect. (I also use it for guacamole and for egg salad, but not for pastry, oddly enough).
The dough (batter?) is still really soft, and shaping it was always a pain. I now treat these like pancakes and just use my largest scoop (it's a #12 which is 1/3 cup) to put the batter directly on the griddle. I flatten out the mounds a bit with a spatula. They're delicate, so you have to be careful on the first flip, but they'll firm up a bit as they cook. I don't use a non-stick skillet anymore, just my cast iron griddle with some oil on it.
In addition to the cumin and the coriander (about 1 - 2 teaspoons of each), I also add in a bit of chili powder.
I've also tested out a couple of variations that were good. Sometimes I'll finely dice sweet potatoes and saute them with the onion mixture to get them tender. If you happen to have leftover caramelized onions on hand, those are a great addition. I'm planning to do a version with diced jalapenos for some extra heat. It's a good recipe to play around with.
** I have a lot of information about the kitchen equipment I use the most in this post, if you're ever wondering. **