Sai krok Isan is a fermented sausage from the Isan region. It is made with a mixture of ground pork meat and fat, combined with garlic, sticky rice, salt, and pepper in a natural encasing. The sausage is then allowed to dry and ferment for several hours or sometimes even for up to 2-3 days in a blazing hot sun, a method that provides this sausage with its unique sourness.

Salty with a hint of sourness, these flavorful sausages are usually grilled or fried and served alongside raw chilis, fresh ginger slices, garlic, and fresh vegetables. Thais consume them for breakfast or buy them from local street carts as delicious snacks that are grilled on a stick and consumed on the go.