Right in the city centre, in the middle of the sightseeing paradise, there is a restaurant offering traditional French cuisine - and for sure - soufflé is the number one on menu. Check the menu via the official website to see what is served there. Expect a bit higher prices though due to the location.
Mon - Sat: noon - 4:15 pm, 7 pm - 10 pm
Official Website https://www.lesouffle.fr/
Address 36 Rue du Mont Thabor, 75001 Paris, France
Coordinates 48°51'59.208" N 2°19'35.355" E