Break the ice cream and butter into small pieces and combine in one bowl. Boil water for gelatin and cool to a temperature of 60–70 ℃. Cover the mold with cling film.
Melt the ice cream and butter over the heat until smooth, stirring constantly, but do not bring to a boil. The mass should be just warm. Add dry cream and mix well.
Cover the container with cling film and refrigerate for 2-3 hours. During this time, the dry cream should completely dissolve.
Soak the gelatin in hot water, stir well and cool to a temperature of 40–45 ℃.
Pour warm gelatin into the mixture that was in the refrigerator and stir. Place the resulting soufflé in a mold lined with cling film and smooth the surface.
Cover the top with cling film and refrigerate for 3 hours.
After 3 hours, remove the soufflé from the mold onto a plate, cut into 2 x 2 cm cubes and roll in cocoa.