Step by step

Chop the onion and garlic finely and fry gently in some vegetable oil

Tips
Avoid adding any paprika or chilli powder and you'll find that this dish is still lovely when rather sweeter: and by so doing it will also be more acceptable to children.
Trivia
The curry is not a spice but a mix of spices that results in a distinctive and complex set of aromas and flavours - the curry!