The Thai crispy noodle dish with sweet-sour gravy is Mee Krob. Also spelled Mi Krop, its Thai name means “crispy noodles,” describing the dish’s deep-fried rice vermicelli base.
Mee Krob is made by frying thin rice noodles until brittle and crisp, then coating them in a sweet-and-sour sauce. Recipes may include shrimp, pork, tofu, fish sauce, citrus juice, tomato paste, sugar, chili, and kaffir lime leaves. Bean sprouts, scallions, cilantro, and fried egg strips are common garnishes.
A popular Bangkok legend connects the dish with King Rama V. During a boat trip near Talat Phlu, he reportedly smelled noodles being stir-fried by a Chinese immigrant named Chin Li, stopped to taste them, and enjoyed them. This story explains the alternative name “Rama V’s crispy noodles.”
Mee Krob is easy to confuse with Pad Thai because both are Thai noodle dishes, but Pad Thai uses stir-fried noodles that remain soft. Mee Krob’s defining feature is its crunchy fried noodles and tangy sauce.