Glazed Corn Beef and Cabbage with Horseradish Cream Sauce

For the Corned Beef:

corned beef brisket with seasoning packet

small red potatoes

large carrots, peeled and sliced into 3-inch chunks

head cabbage, outer leaves removed, and cut into small wedges

For the Horseradish Sour Cream:

sour cream (light sour cream is fine)

drained horseradish, more or less to taste

Dijon mustard

cayenne pepper, or to taste

minced fresh parsley

For the Brown Sugar Glaze:

light brown sugar

apple cider vinegar

yellow mustard

garlic powder

onion powder