03Just before serving, heat grapeseed oil in a heavy skillet. Add venison and sauté over medium heat, turning to cook on all sides, until medium rare, about 10 minutes. An instant-read thermometer will register about 125 degrees. Do not overcook. Keep heat moderate so spices do not burn. Remove from heat.04Over low heat, swirl butter into sauce with a whisk. Transfer venison to plates, and spoon sauce around.