Forget McDonald’s. This Chinese Fast-Food Chain Is Now the World’s Biggest.

SINGAPORE—It sells ice cream and sugary drinks for under $1. Its mascot looks like the love child of Frosty the Snowman and the Michelin Man. And its stores relentlessly blare a jingle set to the tune of “Oh! Susanna.”

This recipe helped Mixue Ice Cream and Tea become the world’s biggest food-and-beverage chain by number of locations, topping McDonald’s and Starbucks.