Beat the sugar and egg in a bowl until thick and light.

Add the oil in a drizzle and the lemon juice, continuing to beat.

Combine the flour and baking powder.

Mix everything together with a pastry spatula in a bottom-up motion and add a pinch of salt.

Once the mixture is smooth and homogeneous, take a little at a time with a spoon and pour onto a baking sheet covered with parchment paper.

Bake at 180 degrees for 15 minutes.