Roast Venison with Red Wine, Beetroot and Mushroom Sauce

New winner of tastiest thing I have ever cooked. This recipe is a culmination of ideas from 2 friends and some of my own. The thing that made this so tasty was the beetroot. It was cooked under the venison with some garlic then pureed and added to the sauce. I have sort of used this idea in past to flavour gravies but never to create the central flavour. I don't see why this couldn't be done with different types of meat. One of the other benefits to this recipe was that there was very little preparation. This was served with steamed beans and roasted parsnip and potato. As with most of my left over sauces, this one ended up in pasta with chunks of the left over meat with some parsley and parmesan.

A lamb rump and bacon version - still great.

1 piece of venison for roasting (mine was 1.5 kg)
1 large beetroot in 1cm slices
1 head of garlic, cloves separated
7 slices prosciutto (more if necessary)
Sage leaves (guessing about twenty)
Pepper
Salt
500 gms mushrooms diced
Extra virgin olive oil
1 cup red wine
1/2 cup chicken stock
3 tbs cream
Roasted potato and parsnip
Steamed beans/greens

Preheat an oven to 220C. Calculate the cooking time for the venison at 20 mins per 450gms + 20 mins extra cooking time. Roast for the first 20 minutes at 220C then reduce the heat to 180C. Lay the beetroot slices in your cooking dish (cast iron frying pan, non stick frying pan, roasting pan), I used a 30cm non stick frying pan. Place the whole garlic cloves on top of the beetroot, sprinkle the lot with a little olive oil. Crack some pepper over the venison and place as many sage leaves as you feel necessary on the venison. Lay strips of prosciutto over and under the venison, no need to be too pedantic, its going to warp in the oven. Cook in the oven as per above. Remove the venison from the oven to a clean plate, cover with foil and a tea towel to keep warm.
Remove the beetroot and garlic (removing the garlic skin) from the pan,  process in a blender or similar. Add the extra virgin olive oil to the pan, heat to medium high and cook the mushroom with a little salt. When they have some colour, add the red wine and reduce until the booze smell is gone. Add the beetroot goo, the cream and the chicken stock and simmer over a medium heat or until you have reached the required consistency. Add the juice from the resting venison to the sauce. Slice the venison, arrange on a plate with steamed greens and roasted potato and parsnip. Add sauce and enjoy.