Prairie Dog, mom says it was so long ago she did this, she no longer has the recipe. She recalls that she snipped it out of The Western Producer. BUt the process is as follows:
Make a brine with various spices, unclear if this brine is just salt, mom says she doesn't think vinegar is involved, but can't recall for sure. Place the RAW brisket in an earthenware crock, cover with brine, then place something heavy (rock) on top of brisket to keep it below the surface. Turn daily for 7 -10 days!
After appropriate soaking time, place brisket in pot of cold water, bring to boil. Boil for a bit. Drain and repeat process bringing it to boil again in a a fresh pot of water. Voila! Corned beef.