Pork Chops and Gravy

I have a confession to make. I can't make pork chops. Well, I can, but they are usually tough or dry or nasty or . . .
Anyway, I'm constantly trying new recipes and rather liked this one. It wasn't as juicy as those Hormel-cut-your-chop-with-a-fork commercials that continue to mock my failure, but it was good. And it's one pan for the chops and the gravy. Win win!!

Pork Chops and Gravy
6 Pork Chops
1 large onion, sliced (or dried onion flakes, as I usually use)
2 c beef broth
2 Tbsp flour
1 c sour cream
Sage, rosemary, etc

Rub chops with seasoning. Brown chops in a large skillet with onion. Pour broth over chops. Cover and simmer for 20 minutes. Remove chops. Add some cold milk to flour and stir until smooth. Pour into broth mixture and stir until thickened. When broth is thickened, add sour cream. Stir until smooth. Serve chops with gravy.