Now add in your raisins, and half a cup is the bare minimum I use. I find that sometimes there is too much liquid and not enough raisins by the time I reach the end; be brave and just add in what you need at that point.
IF you want to be really traditional, use currants instead of raisins in the tarts.
All calories and info are based on a third party calculator and are an estimate. Actual nutritional info will vary with brands used, your measuring methods etc.