Brown Butter Pecan Shortbread

Preparation

1. Step 1

   Grind pecans in processor until coarse meal forms. Melt 1/2 cup butter in small skillet over medium heat. Cook until dark amber, stirring often, about 6 minutes (do not burn). Pour through fine strainer into small bowl. Chill just until firm, about 1 hour.

   Step 2

   Preheat oven to 300°F. Whisk flour and salt to blend. Using electric mixer, beat brown butter, 1/2 cup butter, and sugar in large bowl until creamy. Beat in vanilla, then nuts. Gradually beat in flour mixture on low speed just to blend.

   Step 3

   Transfer dough to sheet of parchment paper. Form dough into rectangle. Place second sheet of parchment paper over dough. Press or roll dough into 12x8- inch rectangle. Remove top sheet of parchment. Transfer dough on parchment to baking sheet. Using fork, pierce dough all over, spacing 1 inch apart.

   Step 4

   Bake shortbread until golden brown and firm to touch, about 55 minutes. Leaving shortbread on baking sheet, cut lengthwise into 8 strips. Cut each strip crosswise into quarters. Cool 10 minutes on sheet on rack. Transfer cookies to rack to cool completely. DO AHEAD: Can be made 3 days ahead. Store airtight at room temperature.