Meanwhile, Sapporo is the birthplace of miso ramen, which gained popularity in the 1960s; today, miso is a major category of ramen, alongside shio (salt) and shoyu. Sapporo miso ramen contains thick noodles in a pork, chicken, or seafood broth, topped with hearty add-ons like cabbage, ground pork, bean sprouts, soft-boiled eggs, and sweet corn.