I went to Jamie's Italian the other day and had chicken with a tomato sauce. The sauce was amazing - lovely and sweet with so much flavour.
My standard tomato sauce is sauteed onion and garlic, tin of chopped tomatoes and some balsamic vinegar/herbs etc. I add some sugar but the sauce still tastes a bit bitter. OK, but not great.
Any tips? Would fresh tomatoes work better? The ones in the shops always look a bit anaemic to me. I currently use Napolina tinned.