Grandma's adorable dessert 🍋 A taste that cannot be described 🍑

Ingredients :
2 eggs
100 gr. sugar
120ml. milk
120ml. sunflower oil
200 gr. Flour
15 gr. baking powder
lemon zest 🍋
150 gr. peaches in syrup
cream:
300ml. milk
1 egg yolk
10 gr. vanilla sugar
3 tablespoons sugar
2 tablespoons cornstarch
1 tablespoon mascarpone
30ml. lemon juice