Butternut Squash Cake with Cream Cheese Frosting - All Kitchen Colours

Ingredients

• 250 g self-raising flour
• 300 g finely grated butternut squash
• 200 g caster sugar
• 150 g light Muscovado sugar
• 4 eggs (room temperature)
• 200 ml sunflower oil
• 1 tsp baking powder
• 1 tsp bicarbonate of soda
• 40 g finely chopped walnuts (for the sponge)
• 40 g finely chopped walnuts (for decorating)
• 1 1/2 tsp cinnamon
• ¼ tsp ground nutmeg
• ½ tsp ground ginger
• ½ tsp salt
• 20 ml rum (optional)
• 1 tsp vanilla essence
• 250 g unsalted butter
• 180 g Philadelphia cream cheese
• 180 g icing sugar