Underbelly’s tonkotsu ramen pairs a pork bone broth with thick noodles, slices of pork belly, and toppings like soft egg, scallions, and crunchy elements depending on the build. The restaurant distinguishes its ramen by adding creative touches, such as different pork cuts and optional extras, so the bowl feels a bit more modern than classic shop styles. The broth brings a satisfying richness while the noodles stay firm, and the pork belly adds both flavor and texture that evolves as the fat renders into the soup. Ramen bloggers often mention the tonkotsu and the Belly of the Beast bowl when recommending Underbelly to people exploring ramen in North Park.