Six jet planes

1.Preheat oven to 180°C (160°C fan forced). Grease cake pan, line base with baking paper.

2.Make cakes according to directions on packets, pour mixture into pan. Bake about 50 minutes. Stand in pan 5 minutes before turning top-side up, onto a wire rack to cool.

3.Using a serrated knife, level cake top, place cake cut-side down on cake board, securing with a little frosting.

4.To make butter cream. Beat the butter (and any flavouring if using) in a small bowl with an electric beater until the butter is as white as possible. (This will result in a whiter buttercream which will give you better results if colouring it). Gradually beat in half of the sifted icing sugar, then the milk, then the remaining sifted icing sugar.Beat until the butter cream is smooth and spreadable. Keep scraping down the side of the bowl during beating.

5.Tint butter cream green. Spread all over cake. Decorate sides with red and yellow sweets to form arrows, decorate top with black sweets to create a runway. Using the picture as a guide, position planes on cake.