Time Out says
The Harvard Square location of this Japanese chain is a prime spot for students and tourists to get a fast, nourishing bowl of ramen. The signature tonkatsu is made by simmering pork bones for 20 hours, resulting in a deeply flavorful broth. Santouka also offers the lesser-known toroniku ramen, made with pork cheek meat. The vegetarian option—featuring menma kikurage mushrooms, soy marinated wheat gluten, and umeboshi—is also a worthy choice.
1 Bow St
|Cross street:||Massachusetts Ave|
|Transport:||Red Line to Harvard|
|Opening hours:||Mon-Thu 11am-9:30pm; Fri-Sat 11am-10:30pm; Sun 11am-9pm|