Step by step
Beat the egg with the diced butter and the sugar until you have a smooth and soft consistency. Then add the yogurt, vinegar and vanilla extract, stirring everything together continuously.
Tips
The Red Velvet Cupcakes will keep in the refrigerator for 2-3 days in special cake containers, whilst if not filled with any cream you could keep them for 4-5 days out of the refrigerator. To cook them, use muffin tins or ramekins.
Trivia
The most common decoration for cupcakes is a butter cream to which food colouring is added if desired. In this case we wanted to add a lighter topping, with just cream cheese, cream and sugar.