Double Chocolate Fudge Cupcakes

INGREDIENTS

• 500g (2 cups 2 tbsp) Organic Horizon Dairy butter
• 2/3 cup cocoa powder
• 4 Organic Large  Horizon Dairy eggs
• 1 tsp vanilla
• 1 1/2 cups caster sugar
• 1 cup plain flour
• ½ tsp of baking powder
• 1 cup chocolate chips
• 1 cup (8 ounces) Organic Horizon Dairy unsalted butter, at room temperature
• 2½ cups powdered sugar
• 1 tsp vanilla extract
• 4 ounces semisweet or bittersweet chocolate, melted and cooled