L’Éclair de Génie — a Parisian pastry shop that only sells éclairs — is opening its 25th store on Robson Street in Vancouver in April 2017,  celebrating a renaissance on the éclair, a popular patisserie treat that is comforting, easy to eat, and able to be made at home. “We have 257 kinds of éclairs, and I still have fun playing with new flavours, textures and colours,” says Christophe Adam. “The éclair must have oomph, with a dazzling, modern look.” Adam has stores in Japan, Hong…