Preheat the oven to 180°/160°C(fan)/350°F/Gas Mark 4 and prepare baking pan by greasing and lining it with some baking paper.
Put all dry ingredients (flour, baking soda, spices) in a large bowl and give them a mix with a whisk. Alternatively, you can sieve them in.
250 g self-raising flour, 1 teaspoon baking soda, 2 teaspoon ground cinnamon, 1 teaspoon mixed spice, ½ teaspoon ground ginger, ¼ teaspoon ground nutmeg
Add coarsely grated carrots and roughly chopped walnuts. Mixed them into the dry ingredients with a spoon or spatula.
250 g carrots, 100 g walnuts
In a large jug (or another bowl) whisk together brown sugar, oil, yogurt and eggs. You want nice and uniform mixture.
200 g brown sugar, 150 ml neutral oil (light olive oil, sunflower oil or cold-pressed rapeseed oil), 150 g plain yogurt, 2 medium eggs
Next, pour wet mixture into the bowl with dry ingredients and mix until combined. I like to use a spoon/spatula and use folding motion to incorporate all the ingredients.
Pour cake batter into prepared, lined cake tin and bake in preheated oven for approximately 30-40 minutes or until skewer inserted into centre comes out clean.***Pro Tips*** Ovens vary so you might want to check doneness of your cake at around 30 minutes. My temperamental fan oven takes 40 minutes at 160°C.Once ready, take the cake out of the oven and leave it in a tin for a few minutes before taking it out onto cooling rack to cool completely.