
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 1 · The birth of the secret burger custom
dash In-N-Out Secret Menu
Got a special craving, yeah? (Animal Style!) It's not so secret now, oh-oh! (In-N-Out!)

dash Co-founder Esther Snyder established uncompromising quality standards that made customization possible.

dash The legendary 'Animal Style' burger was born in 1961 from late-night surfers and drag racers.
Fun Fact
First speaker box: Harry Snyder built the first drive-thru speaker system in his garage using spare parts in 1948.
Glossary
secret menu (noun)
A selection of food or drink items prepared by a restaurant but not listed on its official menu. In 1961, a Baldwin Park manager created the first off-menu burger, initiating the chain's secret menu tradition.
A selection of food or drink items prepared by a restaurant but not listed on its official menu. In 1961, a Baldwin Park manager created the first off-menu burger, initiating the chain's secret menu tradition.
Quiz
In what decade did In-N-Out first officially list the 'Not-So-Secret Menu' on their website?
Quiz
What technological innovation did Harry Snyder build in his garage for the first In-N-Out stand?