Beer Braised Beef Meatballs with Horseradish Sauce

Name: Beer Braised Beef Meatballs with Horseradish Sauce
Ingredients: 1 loaf pumpernickel or sourdough bread; 1 cup milk; 2 pounds ground beef; 1/3 cup Worcestershire sauce; Kosher salt and freshly ground pepper; 1/2 cup fresh parsley leaves, finely chopped; 4 round tablespoons prepared horseradish; 6 cloves garlic, grated or made into a paste; 1 egg; 2 tablespoons EVOO; 1 bottle amber ale (tangy and sweeter) or Guinness (bitter); One 10-ounce can beef consomme; 1 1/2 cups sour cream; 1/4 cup minced fresh chives; 1/4 cup heavy cream; 1 bunch watercress, stemmed