In small bowl, combine flour, salt and baking powder. In large bowl, beat shortening, confectioners? sugar and vanilla extract until smooth, about 1 minute; add flour mixture, beating on low speed until incorporated. Do not refrigerate dough.
Divide dough into two disks. On lightly floured surface, roll out dough 1/4 in. thick. Cut with snowflake cutter; carefully transfer cookies to baking sheet using spatula (cookies will be tender). Reroll excess dough to cut out remaining cookies.
Bake 8-11 minutes or until very light golden around edges. Remove to cooling grid; cool completely.
Outline and fill in with white royal icing; let dry. Add tip 2 snowflake icing outlines; sprinkle with pearlized sugars; let dry.