Preheat the oven to 180 deg c/gas mark 4
Stick the chocolate chips in the freezer while you prepare the ingredients
Line a muffin tin with paper cases
Sift the flour and cocoa powder into a bowl
Remove two tablespoons of the mix and put aside
Add the baking powder and combine
In a jug measure out the milk, oil and orange extract
Add the wet ingredients to the dry and stir
Get your chocolate chips from the freezer and put aside 50g
Toss the remaining chips in the flour and cocoa mix and fold gently into the batter
Pour the batter into the prepared cases - a large ice-cream scoop is useful for this
Scatter the remaining chocolate chips onto the tops of the muffins
Bake for 20 - 30 minutes, testing after 20 to see if a skewer comes out cleanly
Allow them to cool in the tin for about 5 minutes before putting them on a wire tray to finish cooling, if you can keep your hands off them for that long!