Burger King







The Suicide Burger - Hack the Menu lists eight under-the-radar treats for Burger King but, at a fast food joint famed for its liberal use of cheese and bacon, the Suicide Burger is the stand out, with its four beef burgers, four slices of cheese and four rashers of bacon crammed between two buns.

The site claims the burger is available at all outlets - although sometimes under the name The Quadstack - for $3.99. However, in the event that a cashier stares blankly after receiving the order, customers are advised to simply describe it ingredient by ingredient.

The Suicide Burger - sometimes called the Quadstack - is available at Burger King across the United States

The Veggie Whopper - Just because someone doesn't eat meat, that doesn't mean they don't want to cram their face with insane amounts of food.

It goes with the name that Burger King has a carnivorous bent to its offerings, but with its pièce de résistance - The Whopper - bosses obviously didn't want vegetarians to miss out.

To this end, the BK secret menu contains a veggie-friendly version of the flagship burger, with the normal beef patty replaced with a non-meat alternative.



Frings - Less a new dish for culinary adventurers and more something for people who can't make decisions. This best-of-both-worlds alternative to chips sees half the fries dumped out of the carton and replaced with a side of onion rings.

Simple but effective, Hack the Menu describes Frings as 'the cherry on top of the Burger King Secret Menu'.



McDonalds







The Monster Mac - Perhaps more aptly called the Bigger Mac, this gut stretching creation is simply a normal Big Mac - but with six extra beef patties shoved in.

According to the Hack the Menu team, the burger is 'enough to satisfy a few people with hearty appetites or one hungry lumberjack' and can be ordered from any McDonalds for $6.49.

The Monster Mac... or the Bigger Mac: Gut-stretching creation is a Big Mac with six extra patties shoved in

Root Beer Float - Ice cream floats are a highlight of everyone's childhood and this secret order from McDonalds allows you to update it for adulthood - by exchanging your soft drink of choice for root beer.

While obviously confined to those outlets which serve root beer, for only $1.99, it's a 'refreshing' desert to a Monster Mac.



McLeprechaun Shake - While fluorescent green is not usually the colour of choice for a tasty treat, that is the shade for this 50/50 mix of chocolate and shamrock milkshakes.

Only on offer in March - due to the availability of Shamrock Shakes - you will have to wait another year for what Hack the Menu calls 'the most famous' of McDonalds' secret offerings.



Starbucks







Liquid Cocaine - Not quite as illicit as the Class A drug but this drink is still a wink-wink, nudge-nudge purchase. This customer-invented beverage is supposedly 'one of the most intense drinks you can get, it's guaranteed to shock your system'.

Made up of four shots of espresso, four pumps of white chocolate syrup, ice and milk, the site suggests showing this recipe to your local barista as a how-to-guide.

Its DIY nature means there is no fixed price but the website said it should be standard for whatever size you order.

'One of the most intense drinks you can get': Made up of four shots of espresso, four pumps of white chocolate syrup, ice and milk

Twix Frappuccino - Coffee and chocolate, the two must haves for the harried officer worker rushing about their day. To that end, some Starbucks customers have come up with a new way of combining the two to make that commute even more efficient.

Made by mixing a Caramel Frappuccino with two pumps of caramel syrup, two pumps hazelnut syrup, java chips and caramel and mocha drizzle, customers will need to show his recipe to their cashier for a hope of walking away with the treat.



Three Cs Latte - Another customer creation, ask your barista to add one pump of caramel syrup and two pumps chocolate syrup to your Cinnamon Dolce Latte.

Hack the Menu is a big fan, claiming: 'In our opinion, the Three C's Latte from Starbucks' secret menu is the perfect cinnamon drink.'



Subway







Pizza Sub - While briefly on the main menu during 2012, the Pizza Sub has disappeared off the advertising boards to become a stalwart on the secret menu.

Essentially two Pepperoni Toasties stacked on top of each other, it's a product best aimed at the particularly hungry.

The price is variable between outlets, but Hack the Menu assures readers the 'taste sensation' is more than worth it.



Old Cut - Not in any way a new dish, it is, in fact, the old way Subway used to cut their sandwiches. At some point over the last decade, the policy somehow changed from cutting down from the top to cutting in from the side.

The Hack the Menu team suggest finding an artisan familiar with the old style as a top-down cut somehow helps the sandwich hold onto the ingredients better.



Wing Effect - Again a change in presentation rather than content. This is for people who like to go at their sandwich one ingredient at a time. Simply ask your sandwich maker to leave the meat closer to the edge of the bread, so it hangs out the side, and voila - wing effect.



KFC





Triple Down - Strictly for an American audience, the Triple Down is a riff on the infamous Double Down, which was released in US outlets in 2010.

It is a double-decker egg, bacon and cheese sandwich, but, instead of bread, the filling is sandwiched between fried chicken.

Hack the Menu warns: 'Not too many people are willing to try something this big, but don't be afraid to ask them for this behemoth if you're really hungry'.

While the Double Down is no longer available, the Hack the Menu team assure readers that if they ask nicely, its larger cousin can still be whipped up (for a variable cost).

Even though the Double Down has been taken off the menu, the Triple Down is supposedly still available

Poutine - A favourite in Canada, some US branches will also whip up customers a portion. Simply a portion of fries covered in cheese and gravy, all outlets should have the requisite ingredients for other dishes and are happy to help out a curious customer.

In-N-Out

Animal Style Fries - Chips covered in onions, pickles and melted cheese - Animal Style Fries are so popular they may as well appear on the regular menu. 'Pure goodness' according to Hack the Menu.

Animal Style Fries are the most popular item on the In-N-Out secret menu

Chipotle

Quesarito - Supposedly the 'Holy Grail' of the Mexican restaurant's secret menu, this is a burrito where, instead of a normal wrap, the fillings are packed into two tortillas fused together by melted cheese.

Hack the Menu says: 'Without a doubt, eating the Chipotle Quesarito is a life changer'.

The Chipotle Quesarito is a 'life changer' according to the Hack the Menu team