Double Chocolate muffins

I was in a mood for something chocolaty and couldn't made up my mind if it  was white or dark chocolate. So I baked double chocolate muffins - recipe from 'Home baking cookbook'

Ingredients for 12 muffins:

• 200g plain flour
• 25g cocoa powder
• 1tbsp baking powder
• 1tsp ground cinnamon
• 115g caster sugar
• 185g white chocolate broken into pieces (125g for batter, 60g for decoration)
• 2 eggs
• 100ml sunflower oil
• 225 ml milk

 Preheat the oven to 200C. Line muffin tin with muffin cases. 

Sift the flour, baking powder, cocoa, cinnamon together into large bowl. Add sugar and chocolate. 

In separate bowl whisk the eggs and oil until frothy, gradually add milk. Stir the mixture of wet ingredients into dry one until just blended. Spoon the batter into muffin cases 3/4 full. 

Bake for 20 min until well risen and springy in touch. Leave the muffins to cool down a little bit in the tin, transfer to a wire rack and leave to cool completely.

Melt the remaining chocolate in microwave and spread over the tops of muffins.