Yeah - I made some to go with my kebab and it was lush!!
Kebab Shop Style Chilli Sauce
1 tin tomatoes
1 onion (chopped finely and dry fried)
2 cloves Garlic (crushed and added in to the onion)
Salt
Pepper
Chilli Powder
Good dash of balsamic or wine vinegar
Add tomatoes and spices to the dry-fried onions & garlic.
Simmer for 15 - 20 mins until it starts to reduce down / thicken.
Give it a whizz with a food processor