Created by Roxanne on October 14, 2011
Step 1: Combine butter, cocoa, sugar and evaporated milk in a saucepan over medium heat.
Step 2: Bring to a boil and boil for 7 minutes.
Step 3: Remove from heat; stir in vanilla.
Step 4: Carefully pour hot mixture into a blender and blend for 2 to 4 minutes.
Step 5: Serve immediately or store in refrigerator