

Chapter 1
The birth of the secret burger custom
Chapter 2
Decoding the legendary secret items
Chapter 3
The kitchen secrets behind the custom grill
YOUR GOAL
Master of In-N-Out's secret menu
Ch 2 · Decoding the legendary secret items
dash In-N-Out Secret Menu
You think it's a secret, a hidden delight? But Animal Style shines ever so bright!

dash The Flying Dutchman consists of two slices of melted cheese sandwiched between two beef patties.

dash Protein Style replaces the traditional toasted sponge-dough bun with crisp hand-leafed iceberg lettuce.
Fun Fact
The Flying Dutchman: This bunless secret menu item was named after founder Harry Snyder's beloved personal boat.
Glossary
secret menu (noun)
A list of food or drink options that a restaurant can prepare but does not advertise on its official menu. In-N-Out's unlisted options began in 1961 when workers first prepared the mustard-cooked Animal Style burger.
A list of food or drink options that a restaurant can prepare but does not advertise on its official menu. In-N-Out's unlisted options began in 1961 when workers first prepared the mustard-cooked Animal Style burger.
Quiz
What is the name of the bunless In-N-Out item featuring two slices of cheese melted between two beef patties?
Quiz
What is the maximum number of beef patties allowed on a single In-N-Out burger today?