Chocolate chip brioche buns: so soft and really delicious!

INGREDIENTS

For the dough:

160 ml (3/4 cup) milk (lukewarm)

7g dry yeast

30 g (1/4 cup) sugar

30 ml (1/4 cup) vegetable oil

10 g (3/4 tbsp) vanilla sugar

1 egg

430g (3 1/2 cups) flour

5 g (1/4 tbsp) baking powder

Salt

15 g (1 tablespoon) butter