1. In a mixing bowl, cream butter, 1 cup sugar and brown sugar. Add the eggs, one at a time, beating well after each addition. Beat in vanilla. Combine the flour, cocoa and baking soda; gradually add to the creamed mixture, beating just until combined. Stir in 1/2 c. pecans.
2. Shape a tablespoonful of dough around each candy, forming a ball. In a small bowl, combine the remaining sugar and pecans; dip each cookie halfway. Place nut side up 2-inches apart on greased baking sheets.
3. Bake at 375 degrees F. for 7-10 minutes or until tops are slightly cracked. Cool for 3 minutes before removing to wire racks to cool completely. Drizzle with melted white chocolate.
4. This recipe should make about 5 dozen cookies =D