We assemble our cake into a detachable form. The cake turns out to be high, so I grow the shape with foil. First, lay out a layer of sponge cake. Pour 1/3 of the marshmallow mass, cover with a second biscuit, and now half of the marshmallow mass. Cover the last biscuit and pour over the remaining mass. We send the pie to the refrigerator to freeze for several hours (I sent it overnight).
When the pie freezes, put the strawberries on top.