1/2 c. butter
1 (4 oz.) pkg. "reg." chocolate pudding
1 (3 1/4 oz.) pkg. "reg." vanilla pudding
1/2 c. milk
1 (1 lb.) pkg. sifted confectioners' sugar
1/2 tsp. vanilla
1/2 c. chopped walnuts (optional)

In saucepan, melt butter; stir in dry pudding mixes and milk. Bring to boiling; boil for one minute, stirring constantly. Remove from heat, beat in sugar. Stir in vanilla and nuts.