Slow Cooker Beef Brisket with Horseradish Sauce

Step 1

In slow cooker, combine 2 cups water, sliced onion, horseradish, and dry beef stew mix. Mix well.

Step 2

Add beef brisket to slow cooker, slicing in half to fit if necessary. Cover slow cooker and cook on low-heat setting for 7 ½ hours, turning meat once.

Step 3

Open slow cooker and, using tongs, remove cooked beef. Transfer brisket to cutting board, reserving cooking liquid. Cool beef brisket slightly.

Step 4

For horseradish sauce, strain cooking liquid into a bowl and discard solids. Skim fat from cooking liquid. Pour strained liquid into a saucepan. Season with salt and black pepper.

Step 5

In a small mixing bowl, combine 1/2 cup (125 ml) cold water and all-purpose flour. Mix until smooth. Heat cooking liquid in the saucepan over medium heat until simmering. Stir in flour mixture, whisking constantly. Simmer, whisking, until thickened.

Step 6

Slice cooked beef brisket. Pour horseradish sauce over. Serve with cooked potatoes.