Mix together the chopped pecan, cocoa and ¼ cup sugar. Blend in 3 tablespoons Pet milk. Set aside while preparing the dough.
Sift cake flour before measuring. Resift 1 ½ cups cake flour with ½ teaspoon salt. Set aside. Cream together the shortening and ½ cup sugar until light and fluffy. Beat in 1 egg yolk. Add the flour mixture alternately with a mixture of 2 tablespoons pet milk and 1 teaspoon vanilla. Begin and end with the flour mixture. Mix until smooth after each addition. Turn out dough on a lightly floured piece of wax paper. Roll into a rectangular sheet 8x10 inches. Spread with the chocolate nut mixture leaving a one inch margin on each 10-inch side. With the aid of the wax paper, roll up like a jelly roll. Wrap in the wax paper and freeze until firm.
Preheat the oven to 375°F. Cut the dough into ⅛ inch slices. Place the cookies on a Silpat Mat or parchment lined baking sheet. Bake for about 8 minutes or until the bottom is lightly browned. Cool on a wire rack and store in an airtight container. Yield: 4 dozen cookies.
Notes
Recipe from my mom
Nutrition information is calculated using an ingredient database and should be considered an estimate. When multiple ingredient alternatives are given, the first listed is calculated for nutrition. Garnishes and optional ingredients are not included.