For a modern makeover of a classic French pastry, we make a stop at L’éclair de Génie in Paris. Here, in one of his stylish Paris boutiques, pastry chef Christophe Adam has reimagined the éclair, updating the oblong, cream-filled pastry with vibrant colors and bold flavors. Beneath the glass of a jeweler’s case, Adam’s eclairs tempt customers with alluring flavors like citron, pecan, salted caramel, hazelnut, and yuzu.