In a large mixing bowl add the warm milk, water, sugar and instant yeast. Stir and set aside for 10 minutes.
Once it has activated (becomes frothy and bubbly) add the flour, salt, milk powder.
Using your hands start mixing the ingredients together until combined. It will look like a shaggy mess - kneed for 5 minutes until the dough it soft and not sticky.
Add the butter 1 tbsp at a time and knead well. Once incorporated shape into a ball.
Transfer to the mixing bowl, cover with cling wrap and allow to rest for 1 hour or until doubled in size.
Knock back and punch out the air, remove the dough from the mixing bowl and divide into 12 pieces. Roll into balls.
Transfer to lined 9x9 inch tray for ladi pav or a 9x13 for regular pav (*check notes below). Cover and allow it to rise for 20 minutes of until doubled in size.
In this time preheat the oven to 180℃. Brush the buns with 2 tbsp milk and place in the oven.
Bake the buns for 20 minutes or until golden on the top and when you knock on the dough it will have a hollow sound.
When they come out of the oven, brush the buns with melted butter and allow them to cool in the pan. Enjoy with butter and coffee.