Melt chocolate/bark in microwave using 30 seconds bursts. Heat for 30 seconds, stir well, repeat as needed to melt. Usually complete in only 2-3 cycles for me.
Add powdered sugar, hot water (heat in mug in microwave covered w plastic wrap!), corn syrup, vanilla and stir until well combined and smooth.
Let cool enough to handle.
Quickly dip cakes with a fork/spatula or spoon over cakes and allow to cool.
If icing gets too thick while sitting, heat 30 seconds and stir.
Recipe from SouthernFATTY.com - Come say hello!
Notes
SouthernFATTY.com 2014
Recipe by Southern FATTY at https://www.southernfatty.com/poured-fondant-icing/