1Heat oven to 375°. In small bowl, combine flour, cocoa, and baking soda; blend well. In large bowl, beat sugar, brown sugar, and butter until light and fluffy. Add vanilla and eggs; beat well. Add flour mixture; blend well. Stir in pecans. For each cookie, with floured hands, shape about 1 tablespoonful of dough around 1 Rolo, covering completely. Place 2 inches apart on ungreased cookies sheet. Bake at 375° for 7-10 minutes or until set and slightly cracked. Cool 2 minutes, remove from cookie sheet.