Langues de Chat

These cookies are a favorite throughout Europe. The loose batter is piped through a small tube; it spreads and becomes thin and delicate in the oven. To make sure the cookies don’t become distorted, I rub the foil lining flat with a soft cloth or paper towel. Then it’s easy to brush the foil with soft, not melted, butter.

To get best results with this recipe, measure the egg white very accurately. If three egg whites are less than ½ cup, beat a fourth in a small bowl with a fork unt