14 oz of sweetened condensed milk.
11 oz of white chocolate chips.
11 oz of butterscotch chips.
1 teaspoon of rum flavoured extract.
1 teaspoon of butter flavoured extract.

Method:

Combine condensed milk, butterscotch chips and white chocolate chips in medium sauce pan over medium heat.

Stir until the mixture has melted and is smooth.

Take off the hear and mix in the rum and butter flavourings.

Pour into a dish and refrigerate for about half an hour or until firm.

Cut and serve.

Source: http://www.fudgerecipes.org/butterscotch-fudge.html