Bryan,
The recipe I intended to follow is on page 161 of Charcuterie, The Craft of Salting, Smoking & Curing by Michael Ruhlman & Brian Polcyn (Revised edition). If you search on the web you can find a site that has a .pdf of the book, just get the revised addition. Didn't want to post the link since it looks like they scanned it and it might not be on the up and up. I have the book which was decently expensive since it is hard bound, so I don't mind posting their recipe. I would buy the book if you have any interest in making fresh/cold smoked or hung sausages, it is a really excellent source to learn by, worth every penny spent.
1 1/4 lbs lean beef
1 lb pork back fat, diced
4 tsp kosher salt
1/2 tsp pink salt (aka curing salt)
3/4 TBS dextrose (or 1 1/2 tsp table sugar)
12 oz crushed ice
1 1/2 tsp dry mustard
1/8 tsp garlic powder
If you made sausage before, you'll know what to do with the ingredients, if not, buy a book (too long to post the process here).
As usual, I substituted things...used beef fat in place of the pork fat. Added some ground boneless ribs on fire sale (I think it was about 1:1 beef to pork not including the beef fat, hit about 30% fat content overall, maybe more with the pork rib fat). Used 2 cloves of minced garlic per pound of meat/fat mixture. Added a small amount of dry milk for a binder. Also made up about 3 pounds of it using the beef/pork ratio mentioned above, not including the 30% fat. I'm sure some math lovers could figure out the weight of the fat. Might be a good problem to pose to my wife going through clinicals, she needs practice, a lot of practice.
After grinding, mixed and left in fridge overnight in a big ziplock bag. Stuffed into hog casings the next day and smoked with apple wood at about 130*F for three hours, dunked in ice water and let sit at room temp for 2 hours (curing salt allows this w/o killing the person who eats it later). Would be better if you have a cold smoker setup and could smoke for 1 to 2 days @ 85*F or lower.
FYI, had a small part of a link for breakfast at 5:30 am. Sliced and put on a hot dog bun, it was so juicy and good, I had problems not having it for lunch (had fish tacos to be good instead).
Hope this helps.