Streusel-Roasted Plums with Vanilla Ice Cream

Name: Streusel-Roasted Plums with Vanilla Ice Cream
Yield: Makes 6 Servings
Ingredients: 5 tablespoons chilled unsalted butter, divided; 5 tablespoons (packed) golden brown sugar, divided; 2 tablespoons dry red wine; 1/4 cup all purpose flour; 3 tablespoons sugar; Pinch of salt; 1/4 cup coarsely chopped toasted hazelnuts; 6 large firm plums, halved, pitted; Vanilla ice cream