Shake Shack Concretes Menu: Frozen Custard, Mixed Thick
Last checked: 7 November 2026. Prices and calories are indicative and vary by location. Concrete flavours vary by Shack, and availability is unverified for any specific Shack.
A concrete is frozen custard mixed thick with toppings until a spoon stands up in it. That is the whole idea, and it is a good one.
Shake Shack concretes are the part of the dessert menu that most guides skip or get wrong. One rival lists four oddly named concretes with stale prices and no explanation of what they are. Another lists custard cups only and calls that the concrete menu. This page does better by saying what a concrete is, which flavours are signatures, why the flavour at your Shack will differ from the flavour at another Shack, and what we could not verify.
For shakes, floats and custard cups, see shakes and drinks. For the full menu in one table, see the all-items menu. The full menu is on the Shake Shack menu homepage.
Reviewers keep saying the concrete is the dessert not to skip, and one visitor watched a concrete hold upside down without budging. The Shack Attack is the one that comes up most, a chocolate custard that reviewers call a great chocolate dessert without being too sweet.
What is a concrete at Shake Shack?
A concrete is dense frozen custard blended with mix-ins. Think of it as a very thick milkshake you eat with a spoon, or as soft serve with the toppings folded all the way through instead of sitting on top.
Custard is not the same as ice cream. It is made with egg yolk, which gives it a richer texture and a denser body. That density is what lets a concrete hold its shape and carry heavy mix-ins like cookie pieces and fudge without turning to soup.
If you have never had one, order a concrete before you order a second shake. The shake is a drink. The concrete is dessert you sit with.
What flavours do Shake Shack concretes come in?
Concretes come in two groups. Signature concretes are the named builds that turn up across Shacks. Local concretes are flavours tied to one Shack or one city, and they change.
That split matters. A guide that prints one fixed concrete list as the national menu is wrong the day it publishes. Your Shack will have its own board, and the board is the menu that counts.
Signature concretes
Shack Attack is the best-known signature concrete name in our research. It is a chocolate-led build, and it is the concrete to order first if you have never had one. It shows the format at its best, with the mix-ins folded through the custard instead of sprinkled on top.
Other signature names appear in rival guides, and they need a warning. Names like Key Lime Pie Oh’ My, Shark Attack, Concreation Foundation and The Shack Beach Diet appear in one rival’s table at $3.30 to $4.30, with a $0.60 mix-in price. Those figures are indicative and unverified, and they look stale. This page lists the names because readers search for them, and it does not print their prices as fact because the only source for them is a single stale table.
Local concretes
Local concretes are the reason to check the board at your Shack. A Shack in one city can run a flavour built around a local bakery or a local ingredient, and a Shack in another city will run something else entirely.
No full list of local concretes was verified for this draft. That is not a gap we can fill by guessing. Ask at the counter what the local concrete is, and order that if you want the flavour you cannot get anywhere else.
How much is a Shake Shack concrete?
No reliable current national price was verified for concretes for this draft, so this page does not print one as fact.
The stale figures in one rival table sit near $3.30 to $4.30, and those figures are indicative and unverified. They sit far below current shake prices, which run near $6.39 to $6.99 in store in the guide consensus, so they look like an old menu. A concrete today will cost roughly in the dessert range, and the app for your Shack is the check that counts.
If a guide gives you a single concrete price with no date and no location, treat it as a guess. Prices are indicative and vary by location, and concretes vary more than most items because the flavours themselves vary.
Concretes vs shakes: which should you order?
Order a concrete if you want dessert. Order a shake if you want a drink with your meal.
A concrete is thicker and more filling. A shake is easier to carry and easier to finish alongside a burger. Both use the same custard base, and the difference is texture and temperature more than flavour.
| Dessert | What it is | When it wins |
|---|---|---|
| Concrete | Thick custard with mix-ins folded through | You want dessert to sit with after the meal |
| Shake | Hand-spun custard drink | You want something to sip with fries |
| Custard cup | Plain custard in a cup | You want custard with nothing added |
| Float | Soda or root beer with custard | You want fizz with your dessert |
That table has four rows for a reason. The dessert menu is wider than shakes alone, and the concrete is only one of the four ways to eat custard at a Shack.
Are concretes available at every Shake Shack?
Concretes are a core dessert idea, but the flavours are not the same everywhere. A signature concrete may be available at your Shack, and a local concrete will only be available at the Shack that makes it.
Availability is unverified for any specific Shack. Check the dessert board or the app for your Shack before you promise a concrete to someone. If your Shack runs a local flavour, that flavour is the one to try, because it will not be there next month.
What mix-ins go in a concrete?
Mix-ins are the toppings folded into the custard. Cookie pieces, fudge, fruit, nuts and candy pieces all turn up, depending on the flavour. The mix-in is chosen by the build, not by you, on a signature concrete. On some builds you can ask for an extra mix-in, and the counter will tell you if that is possible at your Shack.
One rival lists a $0.60 mix-in price, and that figure is indicative and unverified. Do not budget around it. Ask at the counter what an extra mix-in costs at your Shack, since the price will be set locally.
Can you get a dairy-free concrete?
No vegan shake was available in the US at the time of our research, and the same limit applies to concretes, which are built on dairy custard. One dietary guide reports that a non-dairy chocolate custard and shake were discontinued in the US, and that status is unverified at content time.
Do not order a concrete expecting a dairy-free version unless your Shack tells you it has one. Lemonades and teas are the dairy-free drinks on the menu, and the menu guide covers the full dietary picture, including the shared-equipment warnings that matter for allergies.
Why is a concrete eaten with a spoon?
A concrete is dense frozen custard blended thick with mix-ins, eaten with a spoon. It is thicker than a shake and richer than soft serve.
What is the Shack Attack concrete?
Shack Attack is the best-known signature concrete name in our research. It is a chocolate-led build and the concrete to try first if you have never had one.
Is there a fixed national price for a concrete?
No reliable current national price was verified for this draft. Stale figures near $3.30 to $4.30 appear in one rival table and are indicative and unverified. Check the app for your Shack.
Do concretes vary by location?
Yes. Signature concretes turn up across Shacks, and local concretes are tied to one Shack or one city. The board at your Shack is the menu that counts.
What is the difference between a concrete and a shake?
A concrete is thick custard with mix-ins folded through, eaten with a spoon. A shake is hand-spun custard served as a drink. Both use the same custard base.
Are there vegan concretes at Shake Shack?
No vegan shake was available in the US at the time of our research, and concretes are built on dairy custard. Do not expect a dairy-free concrete unless your Shack confirms one.
Sources note
The definition of a concrete and the Shack Attack name come from our competitor research, which also records the oddly named concretes and their stale prices from a single rival table. Those prices are marked indicative and unverified here, not adopted as fact. Shake prices of $6.39 to $6.99 in store come from the guide consensus in the same research file. The non-dairy custard status comes from a dietary guide updated in October 2026, as reported in our keyword research, and is unverified at content time. No full list of local concretes was verified for this draft, and no concrete calorie figures were verified from more than one source, so none are printed here. The official Shake Shack nutrition and allergen information PDF is the source to check for current dessert figures, and the Shake Shack app shows the concretes and prices at your Shack. All prices and calories on this page are indicative and vary by location.