How to Make a Gravity Cake

Colour 300g of the buttercream with the blue food colouring. Use a cocktail stick to add a little at a time until you reach the desired shade.

Cover the top and sides of your cake with the buttercream and smooth it as much as possible, using a side scraper.

Whilst the buttercream is still sticky add sprinkles all around the base of the cake.

Leave the cake for at least two hours, so that the buttercream hardens.

Melt 200g of yellow deco melts, and stir in a little vegetable oil until a thick but runny consistency is achieved.

Use a teaspoon to add dribbles of the deco melts down the sides of the cake – do this all the way around the top edge. Leave to set.

Take the bamboo dowel and insert it into one of the holes at the top of the empty sugar strands pot.

Insert the other end of the dowel into your cake at an angle.

If the dowel is too long, use a sharp knife to cut it to the desired length. Ensure you insert the cut end into the empty pot and not into the cake. When you're happy with the positioning, make a pencil mark where the dowel meets the pot and remove the pot.

Cover the dowel with melted deco melts, up to the mark you just made for where the pot will sit. While the deco melts are still soft, cover the same area with sprinkles, placing more at the base of the dowel where it meets the cake to make it look more realistic.

Remove the part of the lid with the holes, from the empty pot and tape up all but one of the holes. Put some sprinkles back into the pot and replace the lid. Insert the pot on the end of the dowel.

Colour the rest of the buttercream pink and put it into a piping bag fitted with an open star nozzle. Pipe rosettes all around the top edge of the cake.

To finish the cake, add a small amount of the deco melts to the inside of the pot screwcap and stick in place. Add plenty of sprinkles to the top of the cake, concentrating them around the base of the dowel.