Boil the rice in lightly salted water. Cover and let it swell at low heat for about 20 minutes. Meanwhile clean and wash the cauliflower and divide into florets. Cook in salted water for about 5 minutes. Drain and let drain well. Clean and wash spring onions. Cut into diagonal pieces.
Wash and core the chilli and cut into rings. Heat oil in a pan. Fry the cauliflower for about 3 minutes. Add spring onions and chili and fry for about 3 minutes. Deglaze with sweet-sour sauce and season with salt and pepper. Serve the cauliflower pan with rice and garnish with fresh coriander as desired