Step 1

In a large mixing bowl, cream together butter and sugar until light and fluffy.

Step 2

Add egg and vanilla and beat well.

Step 3

In separate bowl, sift together flour, cocoa, baking soda and salt.

Step 4

Add dry ingredients alternately with milk to creamed mixture, mixing well after each addition.

Step 5

Stir in pecans. Chill dough until firm.

Step 6

Shape dough into two rolls (7-10 inches long, 1 1/2 to 2 inches wide). Chill completely.

Step 7

Preheat oven to 375 degrees F.

Step 8

Cut cookies into 1/4 inch slices.

Step 9

Place two inches apart on a greased cookie sheet.

Step 10

Bake for 8 minutes.

Step 11

Remove from pan and cool on racks.