Horseradish Pot Roast

This horseradish pot roast is pure comfort food with a flavorful twist. The beef cooks low and slow until fork-tender, soaking up a rich, savory sauce with just enough horseradish to add depth without being overwhelming.

• 3-4 pound boneless beef chuck roast
• 1 ½ teaspoons salt
• ½ teaspoon ground black pepper
• 1 chopped yellow onion about 1 ½ cups
• 1 cup beef broth
• 3 tablespoons tomato paste
• ⅓ cup prepared horseradish more or less to taste
• 2 tablespoons minced garlic about 6 cloves
• 1 tablespoon Worcestershire sauce
• 3 sprigs fresh thyme or 1 teaspoon dried thyme
• 3 tablespoons cornstarch to thicken
• 3 tablespoons cold water to thicken
• ¼ cup sour cream