Ingredient:

• 1 corned beef brisket (about 4 pounds) with spice packet
• 2 tablespoons brown sugar
• 2 bay leaves
• 3-1/2 pounds small potatoes (10-15), peeled
• 8 medium carrots, halved crosswise
• 1 medium head cabbage, cut into wedges
• 3 tablespoons butter
• 2 tablespoons all-purpose flour
• 1 tablespoon sugar
• 1 tablespoon cider vinegar
• 1/4 cup peeled freshly grated horseradish
• 1 cup sour cream
• 2 tablespoons Dijon mustard
• 1/4 teaspoon sugar