Put short ribs in the bowl of a slow cooker.
Combine first 7 ingredients in a bowl, then pour over short ribs.
Add the water.
Cover, and cook on high for 3 1/2 hour.
Stir short ribs, then cook on low for 3 hours.
Remove ribs and put on a plate. Cover with aluminum foil.
Spoon 2 cups of pan juices in a clear glass measuring container (or fat separator if you have one).
Wait for the fat to rise to the top and discard as much fat as possible.
Add 1 tablespoon of cornstarch and whisk to combine.
Pour gravy into sauce pan and heat, stirring constantly until thickened, 2-3 minutes.
Pour gravy over short ribs and enjoy.