Preheat your oven to 320°F (160°C) and line your cupcakes pans with 15 liners.
Measure out all items and set on your work surface
In a large bowl, mix together the flour, baking powder, baking soda, and salt. Set aside.
In another bowl cream together the softened butter/margarine, oil, sugar and vanilla extract for 5 minutes in this manner: cream on medium speed for 1 minute then increase mixer's speed to the highest and cream for 3 minutes.
Add 3 eggs and mix for 2 minutes with mixer. This makes mixing time to be 5 minutes
Next using your spatula, add in your milk, and vinegar and fold in.
Add dry items mix into wet items bowl and use your spatula to stir well or fold in to combine. This is the base recipe
For other flavours :
First start by weighing and dividing your base recipe into the number of flavours you want. In this case I'm making 5 flavours. So I weighed my total cake batter to give me 818g. Then I divided that by 5 which came up with 163.6g that I approximated to 164g. So four flavours were weighed to be 164g while the fifth flavour wasn't up to that. See video to understand better.
📍 Chocolate Cupcake making: Add all items into base recipe and mix to combine. Then pour into 3 cupcake tins already lined.Repeat same for other flavours. At the end you should have 15 cupcakes in 5 different flavours; where each flavour has 3 cupcakes
Tap your cupcake tins on a flat surface to level them and release air incorporated when mixing
Bake in the preheated oven for 20 minutes or until the toothpick comes out clean.
Allow the cupcakes to cool in the pan for 5 minutes, then carefully remove and allow to cool completely.