How long should I cook center cut pork chops in the frying pan with onions?

I am making pork chops that are about 3/4" thick. In the past, I sauteed the onions then added the chops and 1/2 cup water, turned the heat to low and slow cooked them for 1 hour. I have an electric stove. Lately, they have little tast and are dry. Any suggestions? I only want to use onions and maybe some rosemary.