~ Preheat oven at 190'C. Place 16 paper cups (3.1/4oz) on a tray.
~ Sift flour, baking powder and cocoa powder and set a side.
~ Lightly beat the egg with sugar till bubbly and add in sour cream and milk. Mix well.
~ Add in oil and mix well, then at low speed fold in the flour mixture.
~ Fold in the chocolates by using a spatula until well mix.
~ Spoon into prepared cups and bake at 190'C for 30 minutes.