Stir in flour and salt until dough holds together. Beat egg white slightly. Bake about 10 minutes or until light brown. Immediately remove from cookie sheet. Cool completely on wire rack.
Fill thumbprints with jelly.
Blend in 1 egg at a time until well-mixed. Stir in flour, baking powder and salt. Shape teaspoonfuls of dough into balls. Roll in confectioners' sugar. Place about 2 inches apart on greased baking sheet.