I am making a slow cooker recipe that calls for beef brisket. Unfortunately, my grocery store only had obnoxiously large cuts of brisket so I just grabbed a reasonably sized beef round rump roast. In the back of my head I thought I remembered that the two could be substituted for the other, but in trying to confirm that I'm coming up short.
Can I substitute a beef round rump roast for brisket? Do I need to adjust cooking time for the differing cut?