Prehaet oven at 180 degrees.
Beat butter until creamy
Add the graduated sugar and beat it until light n fluffy and all the sugar has dissolved.
Add in the egg and the vanilla extract n beat inn.
In another bowl sift the salt,baking powder, cocoa n flour.
Mix the food colouring with buttermilk.
Add the flour in three addition to the sugar mixture alternating with buttermilk until all the dry ingredients are fully incorporated.
In a cup mix the baking soda and vinegar n stir fast as they react fast n pour in the cake batter mixing in big strokes n after this bake immediately to avoid loosing the air.
Fill in your cupcake paperliners 3/4 full.
Bake for 18-20.mins. The time is crucial coz they might start falling back. I forgot mine for like three mins n they did.
Once done you can add frosting.
