25 Degrees Secret Menu
25 Degrees Singapore doesn’t publish an official secret menu. This 25 degrees secret menu guide covers the real off menu route: the build your own burger, plus the rotating Number Five slot, which together let you order combinations that never appear on the printed 25 Degrees menu. This guide separates what’s genuinely orderable from what’s just internet rumour.
Does 25 Degrees Singapore have a secret menu?
No, and that matters for setting expectations. Unlike chains with a famous hidden list, 25 Degrees has never published a secret menu for Singapore, and Singapore guides don’t report a staff only list either. What it does have is a menu built for customising: 14 house sauces were reported on the original menu, patties come in 200g, and the build your own option lets you pick patty, cheese, toppings and sauce. That’s a secret menu in practice, even if no one calls it one.
Be wary of any page listing a long 25 Degrees secret menu with exact prices. Those lists usually mix up the Los Angeles menu, the Bangkok menu, and limited time Singapore specials, and the prices rarely match Singapore. If a dish isn’t on the Singapore board and can’t be built from Singapore ingredients, treat it as unorderable here.
What can you build that isn’t on the board?
Start with a signature and swap one element, and you’ve a custom burger the kitchen can actually make. Number One toppings on a chicken patty, Number Three heat with Number One cheese, or onion rings tucked inside a Number Five style stack are all plausible asks, because every part already exists in the kitchen. Loaded fries are another easy custom: ask for filthy fries toppings on curly fries, or truffle oil over plain fries, and you get a side that reads as special without needing a secret name.
| Custom order to ask for | How to order it | Price basis |
|---|---|---|
| Number One style chicken burger | Ask for it | Build your own chicken patty with caramelised onions, gorgonzola style cheese and thousand island. Priced as a build your own, from S$9.50 reported plus extras. |
| Spicy Number Three, extra heat | Ask for it | Number Three with extra jalapenos and chipotle. Priced as a signature, S$14 reported, plus any extra topping charge. |
| Onion ring stack burger | Ask for it | Any signature with a side of onion rings added inside the bun. Burger price plus side price, S$5 reported for the rings. |
| Filthy curly fries | Ask for it | Curly fries with bacon gravy, caramelised onions and cheese. Priced around the loaded side range, S$8 reported. |
| Shake and fries dip combo | Ask for it | Any shake plus plain fries for dipping. No set price, pay for each item separately. |
These are requests, not guarantees. A busy kitchen may say no to a complex build, and extra toppings may carry a charge that isn’t on the board. Ask politely, keep the swap to one or two changes, and confirm the price before the burger goes on the grill.
What was the Number Five rotation?
Number Five is the closest thing 25 Degrees has to a secret slot. Guides describe it as a rotating burger: Number One to Number Four stay fixed, and Number Five changes, with each version available for a limited run. Burpple reviewers note Number Five as being on constant rotation, with each version available only until the end of that month before the next creation arrives.
Two Number Five versions are well documented. One is a pastrami style stack with gruyere, fried onion rings and thousand island, reported at S$18. The other famous version is the Cheesy Mac Attack, with mac and cheese buns, a beef patty, bacon, caramelised onions, Swiss cheese and nacho cheese sauce, also reported at S$18. Both were limited, and neither should be assumed available now.
The Number Five rotation
Ask one question when you arrive: what’s Number Five this month. If the answer is a burger you like, order it, because rotation means it may be gone next month. If there’s no Number Five on the board, the slot is simply resting, and the four signatures plus build your own are the full range that day. That question alone puts you ahead of most diners, who never know the slot exists.
How do you order a custom burger at 25 Degrees?
Order it like a build your own, not like a secret code word. Say the patty, then the cheese, then the toppings, then the sauce, in that order, and the kitchen can follow it without confusion. Skip the secret name entirely, since staff may not know an internet nickname, and a clear ingredient list always works better than a code. Confirm doneness too, since patties were cooked to order in guides, with medium requested in at least one review.
For the standard range to start from, see the 25 Degrees menu card and the 25 Degrees best sellers guide, which list the signatures and sides you can mix from.
25 Degrees Secret Menu FAQ
Straight answers on the questions readers ask most about this guide.
Does 25 Degrees Singapore have a secret menu?
No official secret menu has been published for 25 Degrees Singapore. The real custom route is the build your own burger and the rotating Number Five slot.
What’s the 25 Degrees Number Five burger?
A rotating limited burger that changes over time. Past versions include a pastrami style stack and the Cheesy Mac Attack, both reported at S$18. Availability varies by month.
Can you customise a burger at 25 Degrees?
Yes, through build your own, from a reported S$9.50 base, or by asking for one or two swaps on a signature. Extra toppings may cost extra.
Is the Cheesy Mac Attack still available?
No, it was a limited time Singapore special, reported until late August in one run and October to November in another. It isn’t part of the standing menu.
How do you order off menu at 25 Degrees?
Order by ingredients, not by a secret name: patty, cheese, toppings, sauce, in that order, and confirm the price before ordering.