Burger King's restaurants in France may be closed due to the coronavirus lockdown, but the chain is still encouraging people to eat Whoppers—homemade ones.

The chain's French arm published a tweet showing simply a list of ingredients needed to put together your own "Whopper de la Quarantine" —including bun, ketchup, mayonnaise, pickle, tomato, lettuce, onion and of course a beef burger.

Burger King also tweeted recipes for its fish sandwich, Big King, and Steakhouse burger, featuring the relevant ingredients.

The social campaign by Buzzman was also retweeted by Burger King CMO Fernando Machado, who said: "Nice one from @BurgerKingFR to keep fans engaged and lift up the spirits a bit."

The latest Burger King campaign comes as Jose Cil, CEO of Restaurant Brands International, parent of Burger King, Popeyes and Tim Hortons, shared an open letter yesterday detailing its support for restaurants and staff around the world. 

In it, Cil wrote that RBI is paying a special bonus in April to all corporate restaurant team members in North America across the three brands. In North America, where restaurants are still open, Burger King and Popeyes are also providing paid sick leave for up to 14 days for members in corporate-owned restaurants who have diagnosed with COVID-19 or asked to self-isolate. There will also be relief on rent for some restaurant owners.

For customers, home delivery is being expanded in the U.S. and "curbside takeout" made more available for customers who arrive on foot, while online ordering is also being improved.