Steps
1. Cook rigatoni in boiling salted water until al dente. Drain and set aside.
2. In a bowl, mix wheat flour, cornstarch, ground oats, salt, pepper, and curry powder.
3. Add milk, water, and egg to the dry mix, stirring until a batter forms.
4. Fold in grated carrot, chopped onion, tomato, ají, chopped Brussels sprouts, and flaked sardines.
5. Add mustard and vinegar, mix gently.
6. Heat butter and oil in a skillet over medium heat.
7. Form small patties using the batter mixture and fry until golden on both sides, about 3-4 minutes per side.
8. In a small pan, combine tomato paste, ketchup, barbecue sauce, hot sauce, and a splash of water; simmer for 5 minutes to make the sauce.
9. Add cooked rigatoni to the sauce, stirring to coat.
10. Serve rigatoni topped with a slice of cheese and the sardine patties on the side.
11. Optionally, finish patties in an air fryer at 180°C for 3 minutes for extra crispness.