Heat oven to 190ºC In small bowl combine flour, cocoa and baking soda. Mix well. In large bowl beat 1 cup sugar with brown sugar and margarine until light and fluffy. Add vanilla and eggs and beat well. Add flour mixture and blend. Stir in half cup of nuts. For each cookie, shape about 1 Tb of dough around 1 Rolo, covering completely. In a small bowl combine remaining nuts (ground up pretty fine) with 1 Tb of sugar. Press 1 side of each ball into the nut mixture and place, nut side up, two inches apart on ungreased cookie sheets. Bake at 190ºC for 7-10 min. or until set and slightly cracked. Cool 2 minutes; remove from cookie sheets. Cool completely. ----