Traditional Christmas Cake

Ingredients:
7.8 oz/220g Butter
10.6 oz/300g Sugar
4 Medium Egg Yolks
4 Medium Egg Whites
1/2 Lemon Zest
75 mL Vegetable Oil
250 mL Milk
17.6 oz/500g Flour
0.9 oz/25g Baking Powder
9.9 oz/280g Mixed Dried Fruit