Name: Game day chocolate cake
Prep time: 20 min
Cook time: 15 min
Yield: 12
Cuisine: American
Ingredients: For the football sugar biscuits; 310g plain flour; 0.5 tsp fine salt; 225g unsalted butter, at room temperature; 510g caster sugar; 1 large egg; 1 tsp pure vanilla extract; For the cake; 90g milk or dark chocolate, chopped; 250ml flat cola; 250g plain flour; 100g unsweetened natural cocoa powder (not Dutch processed); 1.5 tsp bicarbonate of soda; 1 tsp fine salt; 3 large eggs; 400g caster sugar; 190ml vegetable oil; 250ml buttermilk; 2 tsp pure vanilla extract; For the icing; 250g granulated sugar; 9 large egg whites; 1 tsp freshly squeezed lemon juice or 0.5 tsp cream of tartar; Pinch fine salt; 560g unsalted butter, at room temperature, cut into small pieces; Few drops green food colouring; 50g natural cocoa powder; 60g milk or dark chocolate, melted; Football sugar biscuits, homemade or store-bought, recipe follows; Plastic goal posts, available a specialty baking stores