Preheat oven to 180ºC . In a large mixer bowl at low speed, beat butter and sugar until blended. Increase speed to medium-high, beat until fluffy. Beat in egg and vanilla. Beat in flour and salt. Shape 1 ts of dough around each Macadamia nut. Place on ungreased baking sheets. Bake for 10 to 13 minutes or until golden around base of each cookie. Cool on wire racks. In a small saucepan over low heat, melt chocolate chips and shortening. Drizzle over cookies. Store in a tightly covered container. Yields 5- half dozen. ----