This tart is based on the classic Austrian Linzertorte, traditionally made with jam or fresh berries. I love changing well-known recipes slightly, making them fresh to enjoy again and again. Given the chance I could eat lemon curd from the jar! Always buy the best curd you can afford or try making my recipe (here) as you can really taste the difference. If you want to go down the traditional route, then try a seedless raspberry jam.