The most LOVED Cake in Italy 😍 GRANDMOTHER'S Recipe

Ingredients :
1 egg
100 gr. sugar
10 gr. vanilla sugar
100ml. sunflower oil
1 tablespoon natural yogurt
270 gr. Flour
10 gr. baking powder
2 peaches
cream:
600ml. milk
10 gr. vanilla sugar
1 egg yolk
4 tablespoons sugar
60 gr. semolina flour