Rise, halve and stone the plums. Arrange them in an ovenproof dish with the rounded side down. Sprinkle with brown sugar. Mix the flour, baking powder and sugar in a bowl. Add the margarine and work with your fingers to a breadcrumb consistency. Add the eggs and milk and stir until smooth. Spoon the mixture over the plums. Bake in the centre of the oven at 175 °C for about 30 minutes. Mix together the icing sugar and cinnamon and dust them over the cake just before serving.
The recipe was made by