Preheat oven to 200 C / 400 F. Butter a 8-9 inch tart tin.
If making your own pastry, roll pastry and line it in the tin. With a fork, prick the base. Put parchment or foil with pie weights or dried beans and bake the pastry for 15 minutes. Remove dried beans continue baking another 5 minutes if the base is still pale. Let cool when done.
Put all other ingredients except raisins in a bowl and mix well. Scatter raisins in prebaked crust and pour mixture into tart shell.
Bake at 325 F or 170 C for 20-25 mins until top is golden brown.
If you have any excess dough leftovers, cut with cookie cutter and bake till golden brown.
Decorate top of tart with it.
Allow to completely cool and serve in slices on it's own or with some whipped cream. Delicious!