Hibiscus blossom.

Food Vanessa Wolf of Maui Now! reports on a local food festival. It's all about onions:

"The offerings varied from Kulis’ Kona Maine Lobster Salad with smoked Kula onion emulsion and grilled Kula onion vinaigrette to Maui lamb crepinettes stuffed with house lemon ricotta and Maui onions. Vasquez’s crispy Maui onion and kampachi tartare was given some stuff competition by Simeon’s chicken liver mousse, Maui onion jam, and Funyuns plate and the Maui onion stuffed with a fried hibiscus blossom filled with black lentils."

Not sure if I like onions that much.