Preheat oven to 180°C, fit muffin tray with paper cups.
In a bowl, mix the dry ingredients, i.e. flour, baking soda, baking powder and the chopped white chocolate. In another bowl, beat the egg and whisk briefly. Then add oil, buttermilk, sugar and vanilla flavouring and mix.
Now carefully fold in the dry ingredients, finally adding the raspberries.
Fill the muffin forms to about 3/4 with dough and bake at 180°C for 20-25 minutes.