A Better Big Mac Recipe

Name: A Better Big Mac Recipe
Ingredients: 3.2 ounces boneless beef short rib, well-chilled; 1/4 cup finely minced onion; 1 teaspoon onion grated on a microplane grater; 1 1/2 tablespoons mayonnaise; 1 1/2 teaspoons sweet pickle relish; 1 teaspoon yellow mustard; 1 teaspoon sugar; 1/4 teaspoon marmite, vegemite, or Maggi seasoning; 1/4 teaspoon ground turmeric; 1 egg white; 1 whole Wonderbread brand hamburger bun, plus 1 bottom bun; 2 tablespoons sesame seeds (about 600); 1/4 cup shredded iceberg lettuce; 4 dill pickle slices; Kosher salt and freshly ground black pepper; 1 slice American cheese