Method
1. Heat olive oil to a clean large cast iron skillet
2. Add onion and fry until softened
3. Add green bell pepper, red bell pepper, yellow bell pepper and garlic clove
4. Fry - 2 min
5. Stir in all purpose flour
6. Mix in superfine sugar, fresh basil leaves, vegetable stock and canned tomatoes and bring to boil
7. Pour content of large cast iron skillet into slow cooker bowl and cover
8. Cook in slow cooker until tender - 4 hr, high heat
9. Add water and salt to a clean large saucepan and bring to boil
10. Add gnocchi and cook until floating - 3 min
11. Drain
12. Stir content of large saucepan into slow cooker bowl gently
13. Spoon gnocchi into large serving bowl
14. Sprinkle with fresh basil leaves and parmesan cheese
15. Serve