Pilot: This is your captain speaking. Are you sitting comfortably? Prepare to return to your childhood.

Flight attendants will be along shortly to serve your favourite beverages. Whether it’s an elderflower cordial, chai tea or an amaretto sour, your grown-up libation will magically take jelly form. Just add boiling water and 200 millilitres of any drink — be it Coke or champagne — to a packet of clear Create-a-Jelly to turn it into a wobbly wonder.

If your imagination isn’t what it used to be, there’s a range of ready-made flavours, including pineapple, port wine, green apple and cream soda.

Prepare yourselves. This Aeroplane is ready to land.

Available at Harvey Nichols Foodmarket, 109-125 Knightsbridge, SW1X 7RJ (020 7235 5000 or harveynichols.com), £1.75.

Photo: Courtesy of Harvey Nichols