Preheat the airfryer to 180c.

Mix the flour, sugar and cocoa in a large mixing bowl.

Rub in the butter until have a breadcrumbs consistency.

Crack the eggs into a small mixing bowl, add the milk and mix well.

Add the egg/milk mixture into the large mixing bowl and mix well.

Add the vanilla essence, mix well and then add a little water if it is too thick. You should now have something that resembles a bun mix.

Using a rolling pin bash your milk chocolate in a sandwich bag until they are a mix of sizes. Add it to the bowl and mix again for the last time.

Spoon into little bun cases and place in the airfryer.

Cook for 9 minutes on 180c followed by 6 minutes on 160c.

Serve!