Put the sugar into a medium pan with 150ml water. Heat gently until the sugar dissolves, then add the apricots and simmer for 15 mins until soft. Take off the heat, splash in the rosewater and leave to cool. Spoon into glasses to serve, topped with a few dollops of the yogurt and a scattering of nuts.
If you want to use a slow cooker...
Leave this to simmer in a slow cooker. Simply tip in the apricots, sprinkle over the sugar and splash over 100ml of water. Cover and cook on Low for 2 hours until the apricots are soft. Take off the heat, splash in the rosewater and cool. Serve spooned in glasses as above.