I watched the episode that has this recipe...Pattie skipped this part...
In a pot with salted boiling water, cook the potatoes and the carrots for 15 to 20 minutes, until tender. Drain and reserve.
Her explanation is in the comments...
This recipe sounds very good. I am wondering, however, about the step to cook carrots and potatoes separately until tender. The following steps include cooking the brisket after it is sliced and covered with the sauce for an additional hour in 30 minute increments. What does the additional hour of cooking time do to the vegetables that have been tenderized?
I look forward to your response.
Thank you for an authentic, informative and enjoyable cooking show.
Oh it helps to make sure the carrots and potatoes are cooked, but you can cook them just with the sauce as well, Caroline. Enjoy!