To make a standard sized jam jar (1 lb, 454 g) you will need 200g oven-dried tomatoes (from a kilo of fresh, plum tomatoes) baked with a sprinkling of herbes de provence.
I particularly like to add a dollop to meaty ragus or you could spread some across a roll of puff pastry then top with sliced salami, grated gruyère and olives before baking in the oven for 20 minutes to give a crisp, flavoursome tart.