Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
  1                     Sessamie seed hamburger bun
   1/5    pound         Ground beef
  2       Tablespoons   Mayonnaise
  2       Tablespoons   Chopped White Onion

Preparation:

1. Preheat Frying pan to medium-high temperature, and tost both halves of the bun. 2. Form the ground beef into a patty slightly larger than the bun. 3. Fry untill done (2-3 minnutes) Salt lightly. 4. Build the buruger in the following order from bottom up: Bottom Bun, Half of mayonnaise, half of onion, Beef Patty, Remainder of mayonnaise, remainder of onion, top bun. (Jack In The box has a special sauce.. You can just use the mayonnaise, but for a closer clone use this recipe: 1 tablespoon Mayonnaise 1/8 Teaspoon Lemon Juice Dash of onion powder.)