Menchie's 7785 Sunset Hwy, Mercer Island, WA98040 Menchie's serves up frozen yogurt with a smile on Mercer Island. It features a rotating menu of 108 flavors so there's…More something for everyone, whether your taste is for sweet or sour, decadent or delicate. Besides the standards (vanilla, chocolate, strawberry), Menchie's offers a variety of slightly quirkier flavors, like Thai tea, blueberry cheesecake and lychee. For you purists out there, there's also sweet cream. Dairy-free sorbets also are available, as are an array of toppings, including fresh fruit, nuts and classic candies.