Balthazars Steak Tartare Recipe

Name: Balthazar’s Steak Tartare Recipe
Ingredients: 1 1/4 pound filet mignon, very cold; 1/2 medium onion, minced; 2 tablespoons capers; 8 cornichons, cut into small dice; 2 tablespoons flat-leaf parsley, chopped; 1 anchovy fillet, minced; 2 tablespoons extra-virgin olive oil; 1 garlic clove, peeled and minced; 1/2 teaspoon salt; White pepper; 6 tablespoons Tartare Mayonnaise (recipe follows); 1 baguette, sliced; 2 large egg yolks; 2 tablespoons Dijon mustard; 2 teaspoons fresh-squeezed lemon juice; 1 teaspoon sherry vinegar; 1/2 teaspoon Worcestershire sauce; 1/2 teaspoon Tabasco; 1/2 cup grapeseed oil; 1/2 cup olive oil