In a bowl mix milk with vinegar. Let it sit for 5 min.
Add sugar, oil & vanilla extract. Mix until sugar is almost dissolved.
Add the dry ingredients to liquid ingredients and mix until smooth.
Fill the cupcake liners with the cupcake batter ¾ into each cupcake liner and bake at 350f for 13-15 minutes or until firm to touch.
In a medium saucepan, combine sugar, cocoa and cream. Cook on medium heat until sugar dissolves and mixture boils.
Stir butter and cook for 2-3 minute and stirring occasionally until mixture thickens.
Stir vanilla and pinch of salt. Strain the sauce into a clean container. cover the surface with plastic wrap. Chill it in the fridge. Fill fudge sauce into the cupcakes.
Whip butter & powdered sugar in a mixing bowl using an electric whisk or a paddle attachment for 5 min until fluffy and creamy
Add soft cream cheese, sifted cocoa powder, vanilla extract. Mix for 1minute. Pipe prepared frosting on the cupcakes.
