Preheat your oven to the highest temperature(250°C in my case). First combined the dry ingredients such as flour, salt, cocoa powder, milk powder, powered sugar in a large bowl by passing through a sieve.

Now in another bowl whisk the condensed milk and softened butter until smooth. Now add the colouring and vanilla extract and mix well. Now combined the wet ingredients and the dry by slowly adding the buttermilk. After making the batter add baking powder and baking soda and combined them well into the mixture.

Pour into moulds and bake the cupcakes at 180°C for 15-16 mins or until skewer inserted into them comes out clean. After the cupcakes are baked, let them cool.

Now for the icing: Beat the soft butter for 40-50s or until creamy. Now add the cream cheese and again beat it for 2 mins. Now slowly add powered sugar and keep on beating the mixture. In another 2 mins frosting will be done.

Now for the final step, frost the cooled cupcakes using a piping bag. Garnish the cupcakes with some cake crumble(What I did is, I powered one cupcake in grinder for garnishing)