When barely warmed, this sauce is delicious on ice cream and did not seize up. Here is what the sauce looks like (YUM).
My brother posing with the MN legendary State Fair Food:
Here is the modified recipe for 1/2 the amount of chocolate sauce (it goes a long way):
**1/8 cup milk chocolate fondue candy wafers ( these cut down on the bitterness)
In a small saucepan combine brown sugar, cocoa, and cornstarch. Whisk together until well combined. Stir milk and coffee together and then stir into dry ingredients until well combined. Cook on medium heat stirring constantly until mixture boils and then continue to stir for 1 to 2 minutes. Remove from heat. Add butter, vanilla, and milk chocolate candy wafers. Stir until smooth. Refrigerate leftovers if you have any! This was so easy even I could do it!
** You can purchase the cheap, chocolate flavored, NOT crappy melting wafers online here: Make n Mold melting wafers.