To celebrate the launch of its new Make the Joy. KEWPIE IT. campaign, the iconic Japanese mayonnaise brand is popping-up in Covent Garden for an immersive Tamago Sando experience for one weekend only.
What makes Japan’s famous Tamago Sando so much better than an ordinary Egg Sandwich? This September, KEWPIE MAYONNAISE is inviting Londoners to find out.
Where to catch the Kewpie Mayonnaise Pop-up in London
Event: KEWPIE IT. London Brand Experience
Location: Covent Garden Piazza, London
Dates: 19 September, 11:00am – 8:00pm & 20 September 11:00am – 6:00pm 2026

What will happen at the Kewpie Mayonnaise Pop-up in London
Guests will be able to:
- Enjoy exclusive access to Make the Joy. KEWPIE IT. London pop-up
- Taste an elevated Japanese Tamago Sando
- Immerse in the Japanese convenience store-inspired KEWPIE KONBINI
- Enjoy photo opportunities
- Win exclusive merchandise and product giveaways
- Grab a limited-edition KEWPIE IT. Mayozine
With Japanese food continuing to capture the imagination of UK diners, the event celebrates the simple ingredient that transforms one of the world’s most iconic sandwiches into something truly memorable.
