In a bowl add flour, baking powder, soda, salt, 1 cup chocolate chips and sugar. Mix well
in another bowl add eggs and yoghurt and mix well.
Add buttermilk, butter, oil, and vanilla. Mix well.
Pour wet mixture into dry mixture and fold gently until everything is well combined.
let it rest covered for one hour.
Line muffin tray and fill the liners about 3/4th full. Bake in a 180°C preheated oven for 10 minutes.