This recipe was inspired by a cherished memory. Every few months, I try to recreate an incredible chocolate tartlet I bought from the pâtisserie Carl Marletti in Paris some years ago, which I scoffed on the Métro platform – it was one of the best desserts of my life. Elegant, easy and now enhanced with roasted pecans, my version never fails to impress, either. I love the nostalgic crunch of the Rice Krispie base and the moreish honey and chocolate. Treat your friends – and yourself.