Place 1 tin of condensed milk, 600g white chocolate, 1 knob of butter and 1 tsp vanilla extract in the slow cooker / crockpot on the low setting. Cook for the first 30 minutes with the lid on, keep stirring every 10 -15 minutes.
Take the lid off after 30 minutes and cook for a further 1 hour. You need to be regular with stiring white chcolate fudge as it can catch and brown at the edges.
Pour the White chocolate fudge into a lined 8 inch square tin and place in the fridge to cool for 1 1/2 -2 hours.
Clean out the slow cooker / crockpot ready for the Chocolate Orange layer of fudge
Place the Terry's Chocolate Orange, dark chocolate, 1 knob of butter and 1 tin of condensed milk into the slow cooker and cook on a low setting with the lid on for 30 minutes.
Keep cooking with the lid now off for 1 hour, stirring every 10-15 minutes.
Place the Terry's chocolate oange fudge mixture on top of the cooled white chocolate fudge recipe. Cool for 5 minutes and top with the Terry's white chocolate segments and refrigerate for 2 hours plus.
Cut into chunks and enjoy!
