Trim the flack down to remove any fat. Pick the thyme leaves off one sprig & roll the venison in the leaves then add salt and pepper. Roll in cling film tightly so it looks like a sausage this well help give it a better shape and allow the thyme to infuse better. This can be done the day before.
Put the butter, thyme & garlic into a pan melt the butter, once melted leave to infuse the flavors. Peel & slice the potatoes very thinly the thinner the better. Line a small tray with grease proof paper. Cover the bottom with the slice potatoes then brush with the butter & put a little salt & pepper on, keep doing this to you use all the potatoes. Cover with grease proof paper and tin foil & bake on 180ºC for 30-40 mins till soft in the middle. You now need to press the potatoes so just put a tray on top with some weight on top don't worry if a little butter comes out. Leave over night to set then just cut it into 4.
Peel & chop the carrots place in a small pan cover with water & season then cook till soft, drain off the water and blend with 20g butter till smooth(use may need a drop of water) & season to taste then simply repeat with the parsnip & Swede.
*Blueberry and Raisin Jus:*
Take half the berries & all the raisins & put into a small pan with the wine & bring to the boil slowly reduce it down till the raisins are soft and only about 20% of the wine is left then blend till a smooth purée add this to the jus and plus the berries.
To cook the venison simply heat a frying pan till very hot drizzled a little oil on the venison and add to the pan it will need 1 min on each side and 4mins in the oven on 180ºC for pink. Leave to rest in the hot pan for 3-4 mins, then slice & place on top of the pomme Anna which will take 15 mins on 180ºC. Heat the purees up & quenelle alone the plate & drizzle the blue berry & raisins jus over & enjoy.