use a spice grinder to grind the star anise, peppercorns and salt into a fine powder

pat dry the venison and rub the spices over the meat

heat the butter and the olive oil in a frying pan

when the pan is hot cook the venison 2 minutes per side

add the red wine and then remove the venison and leave it to rest

add the grapes and allow the sauce to thicken

you do not want to grapes to break down too much

slice the venison and pour the sauce over the venison