1/2 cup finely chopped pecans (or walnuts, or pistachios)
Lighty spray baking sheet with cooking spray.
Combine flour, baking powder, and salt. Beat together butter, sugar, and egg yolk in bowl until smooth. At low speed beat in flour mixture and orange rind just until combined.
Spoon dough into spritz gun with star disk. Pipe 2 1/2 inch long sticks 1/2 inch apart.
Bake at 350 degrees for 8-10 minutes until lightly golden. With spatula transfer onto wire rack to cool.
Melt chocolate and shortening in small saucepan. Place nuts in small shallow bowl. Dip about 1 inch of end of cookie into chocolate then nuts. Place on waxed paper to cool completely.
Store in airtight container. Keep refrigerated for up to 3 weeks.