I have a friend (Viki Whitmer) who is a chocolate aficionado. This is her recipe and it is quite good especially if you need a quick treat.
**********************************************Pour one can sweetened condensed milk into a 2 quart bowl.
Microwave on high for one minute. Add one 12 oz. package of milk chocolate chips (Ghirdelli the best) and one teaspoon of vanilla and 2 tablespoons of butter. Stir until melted and smooth. Add one cup of chopped nuts and 1 cup of miniature marshmallows if desired. Pour into a buttered loaf pan or smaller dish and cut into squares when cool.