Marble Chocolate Cupcakes

Put 21 paper baking case in a muffin pan, or place 21 double-layer paper cases on a baking sheet.

Put the margarine,sugar,eggs,flour and milk in a large bowl and using and electric hand whisk,beat together until just smooth.

Divide the mixture between 2 bowls. Add the melted chocolate to one bowl and stir together until well mixed. Using a tea spoon, and alternating the cocolate mixture with the plain mixture, put four half-teaspoons into each paper case.

Bake the cupcakes in a preaheated oven,180'C/350'F,Gas Mark 4, for 20 minutesor until well risen and springy to the toach. Transfer to a wire rack to cool.