SMOKY STEAK N’ ONION BURGERS WITH HORSERADISH MUSTARD CREAM AND WATERCRESS - Sutter Home Family Vi

Ingredients

• 1 tablespoon Colavita extra virgin olive oil
• 1 tablespoon butter
• 3 sweet onions, Vidalia, Walla Walla, or Maui, peeled, cut in half and thinly sliced
• 1/2 teaspoon kosher salt
• 1/4 teaspoon freshly ground black pepper
• 1/4 cup sour cream
• 2 tablespoons prepared horseradish, drained
• 2 tablespoons Grey Poupon Dijon mustard
• 1/4 teaspoon kosher salt
• 1 pound freshly ground chuck steak
• 1 pound freshly ground rib eye steak
• 1/4 cup Sutter Home Merlot wine
• 1/4 cup shallots, finely minced
• 2 garlic cloves, finely minced
• 1 tablespoon Grey Poupon Dijon mustard
• 2 teaspoons liquid smoke
• 1 teaspoon Worcestershire sauce
• 2 teaspoons kosher salt
• 1/2 teaspoon freshly ground black pepper
• vegetable oil for brushing the grill rack
• 6 kaiser rolls, split horizontally
• 12 tablespoons softened butter to be spread over cut sides of rolls
• 3 cups of watercress, cleaned and stems removed