Preparation
To make the sauce: Bring the cream, milk, and sugar to a boil in a heavy small saucepan over medium heat, stirring frequently. In a small bowl, mix the amaretto and cornstarch to blend and then whisk into the cream mixture. Simmer over medium-low heat until the sauce thickens, stirring constantly, about 2 minutes. Set aside and keep warm. (The amaretto sauce can be made 3 days ahead. Cover and refrigerate. Re-warm before serving.)
