Heat a ridged griddle pan until smoking hot. Put the venison on the griddle to sear for 2-3 minutes then turn the heat down to medium and griddle without moving for another 2-3 minutes. Turn over and cook for a further three minutes. This is for rare meat cook for 2-3 minutes longer for medium rare.
Lift onto a plate, cover with foil and leave to rest for ten minutes to allow the Venison to relax. You can leave this to become completely cold. Slice up as thinly as you can.
Set out the pastry cases on a tray. Spoon a teaspoon of cranberry sauce into each case. Top with a twisted slice of rare venison. Add a blob of soured cream, a sprinkling of chopped chives and a couple of long chives to garnish. Grind over some black pepper and serve immediately before they go soggy.