New York Steakhouse Burgers with Tarragon Mayonnaise and Frizzled Onions - Sutter Home Family Vineya

Ingredients

• 1 pound New York strip steak
• 2 pounds ground chuck
• 1/2 cup grated onion
• 1/4 cup Sutter Home Cabernet Sauvignon
• 2 tablespoons steak sauce, such as A.1.
• 1 egg, lightly beaten
• 2/3 cup dried seasoned breadcrumbs
• 1 1/2 teaspoons kosher salt
• 1 teaspoon black pepper
• 1 cup mayonnaise
• 6 tablespoons chopped fresh tarragon
• 2 tablespoons lemon juice
• 1 teaspoon lemon zest
• 3 cups canola oil
• 2 medium onions
• 2 cups milk
• 1 cup all-purpose flour
• 2 teaspoons kosher salt
• 3/4 teaspoon paprika
• 2 tablespoons canola oil, for brushing on the grill rack
• 6 slices New York Cheddar cheese
• 6 brioche buns, split
• 2 beefsteak tomatoes, sliced