Easter Chocolate Traycake - Odlums

Ingredients

• 300g Odlums plain flour
• 320g white sugar
• 60g cocoa powder, sifted
• 1 tbsp Odlums baking powder
• 1 tsp baking soda
• 225g butter, very soft
• 180ml buttermilk, room temp
• 3 large eggs
• 1 tbsp Goodalls vanilla extract
• 75g 70% dark chocolate, roughly broken
• 75g butter, cubed
• 340g icing sugar
• 80ml milk
• 1 tsp Goodalls vanilla extract
• About 240g mini chocolate Easter eggs