Melt the chocolate and butter together in the microwave or double boiler. Smooth everything out.
Add the whole egg.
Roughly crush the biscuits then add them to the mixture.
Add the mini marshmallows. Mix with a spatula.
Spread cling film on the work surface. Spread the filling out.
Fold the film on both sides to tighten and form the sausage. Pinch and roll the ends of the film.
Roll the sausage by hand on the work surface to obtain a nice shape. Place in the refrigerator for at least 5 hours (overnight is better).
Remove the cling film and sprinkle the entire sausage with icing sugar. Spread the icing sugar with your hands to visually highlight its reliefs.
Cut the chocolate sausage and enjoy it chilled.
Notes
As it contains raw egg, chocolate sausage should be kept in the fridge and consumed in the 2 days. It’s better eaten fresh too, so that’s great!You can make one large 27cm sausage or two small ones with this recipe.