Mix together the butter, eggs, yolks, and lemon zest an stir until everything is properly mixed. Add in the sugar, stirring the mixture until the sugar dissolves. Pour in the flour and knead it by hand or in a mixer until the dough is evenly mixed and doesn't stick to the sides of your bowl.
Lay out the dough on a greased pan so that they are 1/4 of an inch think and 2 inches in diameter. Lay them out so that there is about 2 inches between them.
In an oven preheated to 175 degrees (C), bake the cookies for 15 minutes.
After the cookies have finished baking, take them out of the oven and let them cool for an hour. Then you can serve them on your favorite platter.
Question & Answer
Question: Select the incoherent image in the following sequence of images.