Preheat oven to 180, line muffin moulds
In a bowl, sieve cake flour, baking soda, salt, cocoa powder. keep it aside
In another bowl, blend 60g butter and sugar for 4 minutes
Add egg and blend until pale and frothy
Add oil , Vanilla extract and red food colouring. Blend well
Gradually add dry ingredients and buttermilk, alternatively, blend until well combined
Pour the batter into prepared muffin mould upto 1/2 level
Bake for 16-20 minutes until done
Allow to cool completely
In a bowl, blend cream cheese and butter until well combined
Add powdered sugar gradually and blend well
Add vanilla extract and blend well
Add frosting to piping bag and pipe over cupcakes and serve
