Indeed. The avocado shake at Vietnam is surprisingly mild and light — the epitome of refreshment and the perfect foil for all that rates three chilis. Meanwhile, the punchy durian shake has an earthy sweetness and funky undertone that tastes like — of all things — avocado. And the jackfruit shake, at once papaya-creamy, melon-fresh, and mango-lush, has a brightness all its own. Before you get your heart set on the green-bean-and-coconut or red-bean shakes still listed on the menu, be aware that they’re no longer being served. But perhaps it’s only a matter of time before we acquire a taste for them, too.