Step 1

Preheat oven to 180C. Grease and line a 20cm round cake pan.

Step 2

Combine flour, sugar, mixed spice, bicarbonate of soda, sweet potato and date in a large bowl. Make a well in the centre. Combine oil, eggs and orange rind in a bowl. Pour into flour mixture. Stir until well combined. Pour mixture into the prepared pan.

Step 3

Bake for 1 hour or until a skewer inserted in centre comes out clean. Set aside in pan for 5 mins before turning onto a wire rack to cool completely.

Step 4

Use an electric mixer to beat cream cheese, butter and icing sugar in a bowl until light and fluffy. Spread over top of the cake. Sprinkle with orange zest.