Indulge in these irresistible Raspberry Crumble Bars, featuring a buttery almond shortbread crust that perfectly cradles a luscious raspberry filling. Topped with a creamy vanilla custard and a fragrant cardamom almond crumble, each bite is a delightful explosion of flavor and texture. Whip up this scrumptious treat and impress your friends and family with a dessert they'll crave again and again!