In a medium to large saucepan, place the sugar, water and spices and bring to the boil on the medium ring; leave on a gentle boil for around ten minutes.
Peel the fruit cut in half from top to bottom, scoop out the centre fibres and seeds. If very large cut again into quarters.
Remove the spices from the syrup and place the quince quarters gently into the syrup face down.
Add enough water to just cover the quince pieces.
Reduce the heat, cover, and simmer for around an hour, checking from around the 45 minutes. The quince should become rose gold and be tender but not falling apart.
Heat the oven to 170 degrees Celsius (Fan).
Remove the quince pieces from the saucepan and place face up in a pie dish or small baking tray.
Spoon over 2-3 tablespoons of the syrup on each quince slice and place in the oven for 30 minutes.
The quinces will become sticky, golden and a deeper shade of rose gold.
Remove from the oven and rest for ten minutes to serve warm or cooled for a traditional dessert.
Serve with clotted cream, traditional Turkish 'Maraş' ice cream, vanilla custard or simply enjoy them as they are.