Directions

Melt butter and chocolate chips together over low heat. Stir in powdered sugar (this will make a thick ball.) Slowly add 1 can evaporated milk. Bring to a boil, stirring constantly. Boil for about 6-7 minutes, until it starts to get a little thicker. Remove from heat and add vanilla.

Karla sometimes adds almond extract instead of vanilla, and has used mint flavoring if she wanted a mint/chocolate flavoring.