Cut each dinner roll into 6 equal pieces. In a bowl, combine butter and corn syrup and stir until well mixed.
In another bowl, combine sugar and cinnamon and mix well. Dip 6 roll pieces at a time in the butter mixture and then in the sugar mixture. Place 6 pieces in each well sprayed cup of a 12 cup muffin tin. Repeat with remaining roll pieces.
Cover with sprayed plastic wrap and let double in size. Remove wrap and bake at 350°F 15-20 minutes. Cool 3-4 minutes before removing from pan.
Combine icing ingredients and mix well. Drizzle over monkey breads if desired.