This was my grandma's recipe, and I just discovered that my recipe card has been just about destroyed, so I thought I'd better transfer it to something more permanent. I make these for Christmas, and color them red and green.
1 egg white
1 T. cream
1 t. vanilla
3 - 6 drops oil flavoring (I use 1/2 t. peppermint extract)
1 box powdered sugar, plus additional for pressing
1 heaping t. soft butter
Combine egg white, cream, vanilla, flavoring, and color; stir well. Add sugar all at once, mixing thoroughly. Add additional sugar and the butter if necessary to get a thick enough consistency to roll.
Roll into firm, small (about 3/4 inch) balls. Arrange on wax paper; press each ball with tines of a fork dipped in powdered sugar. Let stand overnight to form a crust.
Pack in tins with wax paper between each layer. May be frozen and kept several months.