Preheat oven to 180°C. Grease moulds or paper cups. Take butter and powdered sugar in a bowl and cream together with a wooden spoon till light. Sieve milk powder into the bowl and continue to mix. Add mawa and mix again.
Sieve refined flour, cornflour, baking powder, soda bicarbonate and green cardamom powder into the bowl and mix. Add buttermilk to correct the consistency. If the batter is still thick add a little milk and mix.
Pour into the greased moulds or paper cups. Tap the moulds lightly to even the batter. Place them in the preheated oven and bake at 170°C for thirty minutes. Remove from the oven and let them cool before demoulding. Serve warm or cold.