Cook the onions in the olive oil over a medium heat for 3-4 minutes, until starting to soften.
Add chopped sausages and brown for 5 minutes.
Add curry leaves and cook for 30 seconds.
Stir in garlic and ginger and cook for 2 minutes.
Add chopped tomatoes and chilli (if using) and cook for 20 minutes until sauce thickens and sausages are cooked through.
Check for seasonings, adding salt if needed.
Serve topped with spring onions and coriander if using.
Notes
Sausages - any plain pork sausage work. I use thin pork sausages, but you can use thick ones, but cut them in to slightly shorter pieces.Tomatoes - use ripe fresh tomatoes, if possible. You can use tinned/canned plum tomatoes if you can't get fresh tomatoes, mashing them with a spoon in the pan to break them up a little.Onions - red onions are sweet which I love in this stew, but you can use brown too.Chilli - fresh green chilli, the ones I use are on the mild side. To keep this kid friendly I keep the chilli on the top of the stew when it's cooking so it only adds a mild heat, or you can leave out the chilli altogether. For a spicy dish, add two chillis.Curry leaves - a fragrant herb that belongs to the citrus family. They can be a little tricky to find, so if your local supermarket/grocery store doesn't stock them, try Indian markets or order them online. If you can't find them leave them out, it is still delicious without, but they do add a distinctive flavour. Don't use curry powder as a substitute, it is something completely different!!A tasty garnish idea: fry some curry leaves in a spoonful of olive oil (careful, they can spit a little), drain on kitchen paper and sprinkle over the rougail.If the rougail starts to dry out, add a splash of water or chicken stock.Variations – you can make this with salted fish, shrimp/prawns, king prawns, fish, cubes of beef, or cubes of tofu if wanting to make it vegan. Vegetarian rougaille – leave out the sausages and add a couple of hard boiled eggs to the dish once cooked.A tasty garnish idea: fry some curry leaves in a spoonful of olive oil (careful, they can spit a little), drain on kitchen paper and sprinkle over the rougail.