½ cup sugar
1 Cup powdered sugar
¾ Cup butter
1 egg
1 teaspoon vanilla
½ Cup chopped walnuts
¼ Cup cocoa
2 Cups flour

Frosting:
6 oz. chocolate chips
½ cup powdered sugar
1 Tablespoon oil
1 teaspoon vanilla
1/8 cup milk or less
colored sprinkles (for decoration)

Cream together sugars, butter egg and vanilla until fluffy. Stir in cocoa and flour by hand. Mix in walnuts. Refrigerate 1 hour. Roll into 1 inch balls. Cook at 350 degrees for 10 minutes. Melt chips, stir in powdered sugar, oil, vanilla and milk. Working quickly, pour over 1 cookie at a time and immediately sprinkle with colored sprinkles. Frosting will be runny at first, but should set up and harden if too much milk is not added.