Chettinadu Fish Fry is a popular South Indian appetizer that is known for its spicy and tangy flavors. In this Thermomix recipe, the fish is marinated in a mixture of spices like red chili powder, turmeric, ginger, and garlic paste, along with lemon juice and yogurt. The marinated fish is then shallow-fried until crispy and golden brown. The result is a deliciously spicy and flavorful fish fry that can be served as an appetizer or a side dish with rice or roti.