It really takes no time at all to make a sauce!
chop some onion, peppers, garlic, carrot, whatever you like - soften in fry light (5 mins) add a tin of toms or jar/packet of passata, a tsp of sweetener and simmer for 10 mins. Leave chunky or blitz. My daughter has this blitzed and we have it chunky.
Syn free!! If you make a huge batch with double/triple quantities you can freeze it.
As an example though, dolmio light bolognaise sauce is 12 1/2 syns for a 750g jar.
Agree make your own. If you set an half an hour aside to make a huge batch of sauce then freeze them in portions you will definately be doing yourself a favour. Jars/packets are realy high in syns and just not worth it. If you make a relitavely plain sauce to freeze, you can then add different herbs and spices to them when defrosted to vary the taste. Passatta is another great way to make sauces as its quick, easy and free. just cut the top off the box and away you go, just as easy as opening a jar. Happy cooking. xx