Meanwhile, Make the Compote
In a medium saucepan, combine the sugar and water and cook over moderate heat, swirling the pan until the sugar dissolves, about 3 minutes. Continue to cook, brushing down the side of the pan with a wet pastry brush, until an amber caramel forms, 3 to 5 minutes. Add the apples, orange juice and the vanilla bean and seeds; the caramel will harden, but it will melt again. Cook over moderate heat, stirring occasionally, until the apples are crisp-tender and coated in a light caramel, about 8 minutes; discard the vanilla bean. Stir in the Calvados, lemon juice, orange zest and a pinch of salt. Let cool completely, then refrigerate until chilled.