Quick and Creamy Cake with 3 Yogurts and 2 Eggs

Ingredients:
– 3 natural yogurts (about 125g each)
– 2 eggs
– 200g sugar
– 180g flour
– 1 sachet yeast
– 100ml vegetable oil
– Zest of a lemon (optional)
– Butter and flour for the mold (or baking paper)

Instructions: