The Malassada Challenge Is Back! Island Sushi & Grill is happy to announce the return of their Malassada Challenge on National Donut Day, June 3rd, at 1 p.m. Malassadas are popular Hawaiian yeast-leavened donuts with origins in Portugal. Island Sushi & Grill is one of the few places in Las Vegas where you can enjoy this Hawaiian specialty, baked fresh … [Read more...] about Island Sushi & Grill to Celebrate National Donut Day with Malassada Eating Challenge