- 1 cup (packed) golden brown sugar
- 1/2 cup (1 stick) unsalted butter
- 2 tablespoons spiced rum or dark rum
- 3/4 teaspoon ground cinnamon
Stir brown sugar and butter in heavy medium saucepan over medium heat until melted and smooth, about 2 minutes. Add cream, rum, and cinnamon and bring to simmer. Simmer until sauce thickens and is reduced to 1 1/2 cups, about 5 minutes. Serve warm. DO AHEAD Can be prepared 2 days ahead. Cover and refrigerate. Bring to simmer before serving.