Make a coffee concoction by adding coffee into lukewarm water and keep it aside to cool down.
Take a square dish and dip the biscuits into the coffee concoction and place them at the bottom of the dish. Add some sponge cake dipped into coffee and crumble and spread over the biscuit layer.
Keep vanilla icecream in a bowl till it softens and add chunks of mangoes into it and spread it over the biscuit and cake layer.
Repeat the biscuit and cake layer again the same way and top it with mango purée.
Repeat the biscuit and cake layer once again and top it with plain vanilla icecream.
Finally top it with sliced mangoes and cover with cling film and place it in the freezer overnight.
Cut into slices and serve.
