Easily make your own tomato ketchup (tomato sauce) at home with just a few store cupboard ingredients. For this one, I’ve omitted the salt completely and used maple syrup instead of refined sugar to make it healthier.
Add the oil to a frying pan over a medium/low heat and sautee the onions for a few minutes until translucent but not browned.
Add the garlic and cook for a further minute.
Add the tomato passata, vinegar, syrup and spices and allow to cook, uncovered, for 10 minutes to reduce and thicken.
Whiz in a blender or with a hand blender until smooth. If it’s too thick, add a little water to thin. Pour into a sterilised jar and store in the fridge.