Step 1

In a large slow cooker, combine broth, Worcestershire sauce, mustard, coriander seeds, and brown sugar.

Step 2

Rinse the corned beef briefly with water. This will reduce the amount of salt. Place corned beef in slow cooker .

Step 3

Place peeled and cut carrots in cooker around the meat. Then top the meat and carrots with chopped green cabbage. Set slow cooker to low and cook for 8 hours.

Step 4

Melt butter in a small sauce pot and then whisk in flour. Next add in horseradish and mustard.

Step 5

Pour in milk and cook on low until sauce thickens. Add more milk if sauce is too thick. Salt to taste.

Step 6

Serve corned beef with warm sauce and enjoy.