In medium bowl, stir together flour, macadamia nuts and salt.
In large bowl, beat butter and sugar with electric mixer until light and fluffy. Add egg and vanilla and beat until well combined. Gradually add flour mixture and mix until incorporated. Shape dough into 1 in. balls. Place on ungreased cookie sheet 1 in. apart and make indentation in ball with finger.
Bake 10-12 minutes or until edges are golden brown. Immediately top with Raspberry Sorbet Candy Melts Candy disk and let stand 3 minutes. Move to cooling grid; cool completely.