Peel and pit the mango, then place it in a food processor with the lime juice and blitz until smooth. (Alternatively, you can roughly chop the mango into bite-sized pieces if you prefer a chunkier texture.)
In a small bowl, mix together the yoghurt, Manuka honey and cardamom (if using).
Layer the mango puree and yoghurt mixture in 6 miniature glasses or jars, or alternatively in 2 large glasses. Repeat the layers until all the ingredients are used up.
Top with your favourite nuts if desired.