The name is just how 'cheese' sounds in Brazilian Portuguese, and the city of Canoas made 28 May official Xis Day in 2016.
A huge bun around 18 cm across, filled with meat (or chicken hearts in the xis-coração), cheese, lettuce, tomato, corn, peas and mayo, pressed flat on the griddle at lancherias across the state.
Coxinha (Chicken Croquette)
Pão de Queijo (Cheese Bread)
Acarajé
Tapioca (Beiju)
Abará