Hudson Theatre Ensemble’s zany spin-off, Not At All Hansel & Gretel!, is a delight for children ages three to nine. In the same mold as Kathleen Ferman’s The Emperor’s New Clothes, Sleeping Beauty, The Three Little Pigs, Goldilocks & the Three Bears, and Little Red Riding Hood, Not At All Hansel & Gretel is a fractured fairytale presented in the beautiful, child-friendly, ground-floor theater.