In a large bowl, whip the double cream, condensed milk, and milk chocolate spread and whisk until a thick mousse-like texture is formed and it holds itself. This can take up to 3 minutes on a medium speed (in a stand mixer). Keep an eye on it as you don't want to over mix it as it will curdle.
Pour your ice cream mixture into a loaf tin or freezer-safe container.
Swirl through some caramel and sprinkle the top with chocolate chunks and chocolate curls.
Freeze for at least 6 hours or overnight. Scoop and serve when ready, enjoy!