Grease a 23 cm (9 inch) spring-form tin and line the tin with baking paper.
Combine all the ingredients in the bowl of an electric mixer fitted with the paddle attachment and beat for 5 minutes.
Spoon the batter into the tin and bake for about 35 minutes or until the cake is springy to the touch and a skewer inserted in the middle comes out clean.
Cool in the tin for 5 minutes, then turn out onto a wire rack to cool completely.
Serve the cake dusted with icing sugar.
Notes / Tips / Wine Advice:
Milo is a chocolate malt drink powder. You can substitute it here by mixing 2 tablespoons cocoa powder with ½ cup (65 g) malted milk powder. The cake will be a bit darker and more chocolatey, but still delicious!