Melt together chocolate, butter, cream and Jacobs coffee.
Whisk together cream, condensed milk, Jacobs coffee granules and coffee liqueur until soft peaks form.
Pour 1/3 ice cream into a freezer safe dish or un-lined metal loaf tin.
Drizzle over 1/3 of the swirl mixture then top with another 1/3 of ice cream.
Repeat layering until the rest of the ice cream and swirl mixture is used up, ending with the swirl mixture.
Cover then freeze until set completely.
Scoop to serve – best enjoyed as part of an affogato*.