Preheat oven to 350°F.
Lightly grease large baking sheet.
In food processor or blender, process flours, 1 cup sugar, baking powder and salt until blended.
Add butter and vanilla; process until mixture resembles coarse crumbs.
Add eggs; process until blended.
Add apricots and pistachios; process just until dough is evenly moistened.
Remove dough from food processor; form into 2 balls.
On prepared baking sheet, shape each half of dough into a 12-inch log.
With hands, flatten each log to a width of 2 inches.
Sprinkle each log with 1/2 teaspoon sugar.
Bake 25 minutes or until golden brown.
Remove logs to cooling rack; cool 10 minutes.
Do not turn oven off.
With serrated knife, carefully cut logs diagonally into 1/2-inch slices.
Place on baking sheet with cut sides up; return to oven and bake 7 minutes or until very lightly browned.
Transfer to wire rack; cool completely.