Preheat oven to 350°F. Combine ... until creamy. Add egg yolk and vanilla, beat well. ... confectioners icing or sprinkle with powdered sugar, if desired.
A sandwich cookie -- flavored ... milk, vanilla and egg. Add the dry ingredients ... sides of two cookies together with Icing (see below), ... and of spreading consistency.
Ingredients: 17 (egg .. flour* .. milk .. salt .. soda .. sugar ...)