My wife does a corned beef in the slow cooker with a can of no beans chili
added. Very good.
I cook the old fashioned corned beef like Fretwell in our instant
pot...corned beef, spices, cabbage, potatoes, carrots... First the
corned beef and then the veggies. Makes a nice, tender corned beef
dinner. With leftovers for a couple of days.The instant pot cuts the
beef cooking time way way down, to about an hour and a half.
Yeah, That is just a pressure cooker with a publicist ;-)
It does do a good job on the corned beef tho. You are right, you need
to time your vegetables so they don't turn to mush.