Ingredients:
4 yolks
8 g vanillin
30 g sunflower oil
Zest of one lemon
300 g Greek yogurt
50 g flour
30 g cornstarch
4 egg whites + 1 pinch of salt
1 teaspoon of lemon juice
80 g sugar
Icing:
75 g powdered sugar
3-4 teaspoons of lemon juice

Directions:

1. First mix the egg yolks with the vanilla, oil, yogurt and lemon zest. Form a creamy, smooth mixture. Then add the flour and cornstarch.
2. Whisk the egg whites separately with the salt and gradually add the sugar and lemon juice.
3. Combine the two doughs and mix well.
4. Pour the mixture into an 18 cm diameter mould.
5. Place the mold in another pan and fill it with hot water.
6. Bake at 160 degrees for 60 to 70 minutes.