1.Place stock and wine in a medium saucepan; bring to a simmer over medium heat and keep at a gentle simmer.
2.Heat oil and half the butter in a heavy-based medium saucepan over medium heat; cook onion and garlic, stirring, 5 minutes or until onion is soft. Add rice; stir 2 minutes or until well coated in oil.
3.Stir in 1 cup hot stock mixture until liquid is absorbed. Continue adding stock mixture, 1 cup at a time, stirring frequently, until liquid is absorbed after each addition. Stir in remaining butter and the parmesan until melted. Serve immediately.