In-N-Out Secret Menu (2025) – Full Guide to Hidden Items, Prices & How to Order
The In-N-Out secret menu is one of the most popular parts of the brand, offering far more choices than the simple menu on the board. Regulars know you can order Animal Style, Protein Style, Flying Dutchman, mustard grilled patties, and bigger stacks like the 3×3 or 4×4. There are also custom fries, shake mixes, and…