Soak toast in cold water. Clean and wash spring onions and cut into fine rings. Halve chilli lengthwise, remove seeds and cut into strips. Drain the corn in a sieve.
Squeeze the toast well and knead with minced meat, egg, spring onions, corn and chili. Season with salt, cayenne pepper, paprika and cumin. Form 8 meatballs with your hands. Heat oil in a pan.
Fry the meatballs on both sides for about 6 minutes at medium heat.