I washed the quince, sliced them in half and cored them. Placing them in a baking dish with a small pat of butter and a dusting of cinnamon and sugar, I covered them in foil and baked them at 350 degrees for 45 minutes.
In Turkey, baked quince are served with a heavy clotted cream called kaymak. I served them with a spoonful of organic plain yogurt and a dash more of cinnamon. It is still on the tart side, so you might want to sprinkle some more sugar on the quince or drizzle honey over the yogurt if you like things a little sweeter.
This would also make a delicious dessert.