Pass the cooked quinces through a sieve. Cook the quince puree and sugar for 15-20 minutes, stirring constantly. Spread the quince puree evenly on a baking tray lined with baking paper. In a preheated oven electric cooker: 125 °C/ circulating air: 100 °C/ gas: step; dry for approx. 8 hours.
Leave the oven door open a crack. After 4 hours, turn the quince bread over onto a second baking tray lined with baking paper. Turn off the oven and let the bread cool down overnight in the oven. Remove the baking paper and cut the bread into approx. 2 x 2 cm pieces. Turn the quince bread in portions in grated coconut