1.Make wasabi mayonnaise. Place ingredients in a small bowl; stir to combine. Season to taste.
2.Place flour in a shallow bowl; season. In another shallow bowl, lightly beat eggs with the water. Place breadcrumbs and sesame seeds in a third shallow bowl; toss to combine. Coat chicken strips in flour, dip in egg, allow excess to drip off, then coat in breadcrumb mixture.
3.Heat 1cm (½-inch) oil in a large frying pan over medium heat. Cook chicken, in batches, turning frequently, for 3½ minutes or until golden and cooked through. Remove with a slotted spoon; drain on paper towel.