Prawn & Basil Light Soup

Name: Prawn & Basil Light Soup
Total time: 50 min
Ingredients: 300 g king prawns; 1 onion; 2 garlic cloves; 1 thumb-sized piece ginger; Shrimp seasoning; Salt (to taste); 2 large tomatoes; 3 kpakpo shito peppers/scotch bonnet peppers ((optional)); 500 ml water; 8 basil leaves