At Mixue, options like the Mango Sundae, Strawberry Shake-Shake, and Ice Cream Grape dot the menu, along with tea offerings like taro basil milk tea, peach oolong tea, and brown sugar pearl milk tea.

The Chinese beverage giant Mixue Group has become the world’s largest F&B chain by number of outlets, overtaking Starbucks and McDonald’s. The company, whose brand name Mixue Bingcheng means ...