*Note: If using yellow cake mix with pudding already in the mix; omit instant pudding, use 3 eggs instead of 4; 1/3 cup oil instead of 1/2. Preheat oven to 325~F. Grease and flour 10" tube or 12-cup Bundt pan. Sprinkle nut over bottom of pan. Mix all cake ingredients together. Pour batter over nuts. Bake 1 hour. Cool. Invert on serving place. Prick top. Spoon and brush glaze evenly over top and sides. Allow cake to absorb glaze. Repeat till glaze is used up. Glaze: Melt butter in saucepan. Stir in water and sugar. Boil 5 minutes, stirring constantly. Remove from heat. Stir in rum. Optional: Decorate the top with border of sugar frosting or whipped cream (several little dollops) and sprinkle with shredded milk chocolate on each dollops.