Assemble all the ingredients.

Pre heat your oven for 10 minutes

Mix butter with sugar then add eggs one by one.

Mix lemon juice with milk and let it sit for 10 minutes to ferment the milk.

Mix baking powder with flour then add bit by bit to your mixer.

Add the grated lemon plus fermented milk.

Put the mixer into the baking tin and bake for 35 minutes at 180°c.