You may have noticed a sudden rise in the number of people around London walking around with giant sandwiches in recent months.

Though that is undoubtedly not the oddest thing you've seen in the capital, it does beg the question where is everyone getting these massive sandwiches from?

If you spend a lot of time on TikTok, you may already know that the answer is likely Sandwich Sandwich.

It's a sandwich shop that takes the humble lunchtime meal to a new level, offering endless variations in king size.

Only open recently, Sandwich Sandwich is often met with long queues as everyone hopes to get a taste of the viral meal.

@dinewithnadia London’s best sandwich? The Secret Sandwich Shop in Notting Hill 🥪 #londonfood #londonfoodie #londonfoodspots #londonfoodguide #londonfoodblogger #londonfoodplaces #nottinghill #nottinghillfood ♬ Million Dollar Bill - Beyond Chicago & Majestic & Alex Mills

However, London has more than one to offer when it comes to sandwich shops, including a secret spot in Notting Hill that's not to be missed.

The Secret Sandwich Shop in London that you need to visit

Described as 'London's best-kept food secret', the aptly named 'The Secret Sandwich Shop' serves packed sandwiches all with high-quality ingredients.

Set in a retro speakeasy-like shop, the Notting Hill business creates large sandwiches with prices starting at £9 and rising to £12.

They offer your typical favourites like ham and cheese, tuna mayo and egg salad sandwiches along with some extra special items.

Like the 'Secret Sandwich' made of five seasonal vegetables, avocado, tomato and Kewpie mayo.

Plus, the 7th Avenue is highly rated with Swiss cheese, pastrami, sauerkraut, crispy shallots, pickles, tomato, lettuce, French mustard and Kewpie mayo.

The Secret Sandwich is also not like most of its kind you would find in London, as the business shared that its items are based on a Japanese Wanpaku sandwich.

Explaining: "Wanpaku means cheeky or naughty and that is what our sandwiches are.

"The glorious stacks of colourful layers and varying textures from meat, cheese, eggs, and fresh vegetables, all tucked in the pillowy Japanese bread shokupan, tempting you to take a big bite.

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"These have to be the best-looking sandwiches around."

On Google Reviews, one fan gave it a 5/5 score, sharing: "My favourite sandwich shop in London. Amazingly fresh and delicious every time. Eating in and eating out have both delivered great experiences and their app makes it super easy."

Another adds: "Had a really delicious sandwich from here ordered off Deliveroo! It’s quite filling and the ingredients taste good quality."