Before starting this Apple Crumble with Calvados recipe, make sure you have organised all the necessary ingredients. Pour the flour in a bowl. Add the sugar and salt. Add knobs of soft butter. Work the preparation with the fingertips, forming small balls. Refrigerate for 30 minutes. Peel the apples and cut them into quarters. Cook the apples with a knob of butter, the raisins, 75g of sugar and the vanilla pod. ...