In a bowl add broken pieces of leftover milk based sweet. Add hot milk to it and whisk it until dessert dissolves completely. Add cardamom powder and mix it.
Now using a sifter, sieve flour, baking powder and baking soda all together directly into the mixture.
With the help or a whisker or spatula, fold all the dry ingredients into wet ingredients.
Meanwhile, keep your oven for preheating at 180 C.
Make a smooth batter. Add rest of the 100 ml milk and prepare a batter of pouring consistency.
Make sure, there should be no lumps in the batter.
Take a baking tin and line it with parchment paper.
Pour the prepared batter into the tin and tap it on the counter.
Garnish the batter with sliced pistachios and bake it in preheated oven for 30 min.
Once baked, take the tin out from oven and let the cake rest for 10 min.
After 10 min demould the cake and slice to serve.