1.Preheat oven to 180°C/160°C fan-forced. Grease 14cm x 21cm loaf pan; line base and 2 long sides with a strip of baking paper, extending paper 2cm above edge of pan.
2.Beat butter, rind and sugar in small bowl with electric mixer until light and fluffy. Beat in eggs. Transfer mixture to large bowl; stir in marmalade and peel, then coconut, flour and milk
3.Spread mixture into pan; bake about 1 hour. Stand 5 minutes; turn, top-side up, onto wire rack to cool.