In a bowl, mix the sugar with the eggs.
Then add the oil and milk and, stirring continuously, gradually mix in the flour.
Finally incorporate the yeast.
Grease and flour a round, medium-sized baking tray and pour in the cake batter.
Peel and sliced the quinces, then arrange them on the cake, sprinkle with sugar and bake at 160°C for about 60 minutes.