I'm guessing not a chocolate eclair, unless you bite it really hard.
From the guardian.co.uk
Frost the eclair with chocolate icing.
From the kansas.com
Don't miss the superb eclair, filled with chocolate pastry cream and topped with a dark chocolate glaze, or the wonderful Paris-Brest, a ring-shaped pastry filled with hazelnut cream.
From the post-gazette.com
The pastries included cannoli, eclair, napolean, ricotta napolean, rum baba, chocolate truffle, sfogliatelli and pastachiotti.