Browned Butter Shortbread

Directions

1. 1
   Heat oven to 300F.
2. 2
   Melt 1 cup butter in heavy 1-quart saucepan over medium heat.
3. 3
   Continue cooking, stirring constantly and watching closely, 4-6 minutes or until butter just starts to turn golden.
4. 4
   (Butter will get foamy and bubble.)
5. 5
   Immediately remove from heat.
6. 6
   Refrigerate 5 minutes.
7. 7
   Combine browned butter, brown sugar, powdered sugar and vanilla in bowl.
8. 8
   Beat at medium speed until well mixed.
9. 9
   Add flours; beat at low speed until mixture resembles coarse crumbs.
10. 10
    Press dough into ungreased 15x10x1-inch baking pan.
11. 11
    Prick all over with fork.
12. 12
    Bake 18-22 minutes or until set but not brown.
13. 13
    Cool 5 minutes.
14. 14
    Cut into squares, rectangles, diamonds or triangles with sharp knife while hot.
15. 15
    Brown 3 tablespoons butter in heavy 1-quart saucepan 2-3 minutes or until golden.
16. 16
    Cool 5 minutes.
17. 17
    Combine browned butter and all remaining glaze ingredients except hot water in bowl.
18. 18
    Beat at medium speed, adding enough hot water for desired glazing consistency.
19. 19
    Drizzle glaze over cooled shortbread.
20. 20
    Let stand to set glaze.