Steamed Mango and Ginger Pudding

• 2 small mangoes, one soft, one firm
• 150 g (5 oz) each butter and light muscovad

Peel the mangoes. Dice the firm one to serve with the pudding, and make a pureée of the other with a tablespoon each of butter and sugar.

Spoon all but one tablespoon of the pureée into the bottom of a greased 1 litre (32